Early Christian Sunday Worship
Early Christians gathered on Sunday, the Lord’s Day, for prayer, Scripture, and the breaking of bread. Justin Martyr gives the clearest second-century description, and the Didache, Tertullian, Cyprian, Peter of Alexandria, and the Apostolic Constitutions all connect the day with Jesus’ resurrection. Bible passages often linked to the practice include John 20:1, Acts 20:7, and 1 Corinthians 16:2.
142 early-church witnesses · 224 source quotations · compared with Scripture
What did early Christians believe about sunday worship?
Early Christian writings do support Sunday worship, especially as a regular day for gathering, reading Scripture, prayer, and the breaking of bread. Justin Martyr gives the clearest early description in the second century, and the Didache, Tertullian, Cyprian, Peter of Alexandria, and the Apostolic Constitutions all treat the Lord’s Day as a day of joy tied to Jesus’ resurrection.
The evidence is broad and repeated across several centuries, though some writers speak more about not fasting or kneeling than about a full Sunday liturgy. The Bible passages most directly tied to the practice are John 20:1, Acts 20:7, and 1 Corinthians 16:2, while some other cards are only background about the eighth day or resurrection symbolism. Many more early Christian quotations, Bible passages, and source links are gathered below so you can study the evidence for yourself.
Key Takeaways
- Justin Martyr describes Christians gathering on Sunday to read Scripture, pray, and share bread and wine.
- The Didache and later writers call the Lord’s Day a day for assembly and joy, not fasting.
- Several early writers connect Sunday with the resurrection of Jesus.
- The strongest Bible links are John 20:1, Acts 20:7, and 1 Corinthians 16:2.
Questions Answered by the Sources
Did early Christians gather for worship on Sunday?
The clearest early witness says Christians assembled on the day called Sunday for Scripture reading, instruction, prayer, and the sharing of bread and wine. Other sources also describe Lord’s Day assemblies, thanksgiving, and rejoicing on the first day of the week.
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Justin Martyr, The First Apology Direct teaching
...e bless the Maker of all through His Son Jesus Christ and through the Holy Ghost. On the day called Sunday, everyone who lives in cities or in the country gathers together in one place. The memoirs of the apostles or the writings of the prophets are read, as long as time permits. Then, when the reader has finished, the leader verbally instructs and encourages the imitation of these good things. Then we all rise together and pray, and as we mentioned before, when our prayer ends, bread and wine and water are brought. The leader offers prayers and thanksgivings according to his ability, and the people agree by saying Amen. There is a distribution to each person, and everyone participates in what has been blessed, and for those who are absent, a portion is sent by the deacons. Those who are well-off and willing give what they think is appropriate; the collection is deposited with the leader, who supports the orphans and widows, and those who, through illness or any other reason, are in need, as well as those who are imprisoned and the strangers living among us. In short, he takes care of all who are in need. Sunday is the day when we all hold our common assembly because it is the f
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Apostolic Constitutions, Apostolic Constitutions Direct teaching
... able. But from the evening of the fifth day until cock-crowing, break your fast at daybreak on the first day of the week, which is the Lord's Day. From evening until cock-crowing, stay awake and gather together in the church. Watch and pray, and entreat God. As you stay up all night, read the Law, the Prophets, and the Psalms until cock-crowing. Baptize your catechumens, read the Gospel with fear and trembling, and speak to the people the things that lead to their salvation. End your sorrow, and ask God that Israel may be converted, and that He may allow them a place of repentance, and the remission of their impiety. For the judge, who was a stranger, washed his hands and said, "I am innocent of the blood of this just person: see to it." But Israel cried out, "His blood be on us, and on our children." Matthew 27:24-25. And when Pilate said, "Shall I crucify your King?" they cried out, "We have no king but Caesar: crucify Him, crucify Him; for everyone that makes himself a king speaks against Caesar." And, "If you let this man go, you are not Caesar's friend." And Pilate the governor and Herod the king commanded Him to be crucified. And that oracle was fulfilled which says, "Why
More related quotations from this section 9 shown
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Justin Martyr, The First Apology Supporting witness
And on the day called Sunday, all who live in cities or in the country gather together to one place, and the memoirs of the apostles or the writings of the prophets are read, as long as time permits;
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Justin Martyr, The First Apology Supporting witness
and on the day after that of Saturn, which is the day of the Sun, having appeared to His apostles and disciples, He taught them these things, which we have submitted to you also for your consideration.
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Ignatius, Epistle to the Magnesians (Long Version) Supporting witness
And after the observance of the Sabbath, let every friend of Christ keep the Lord’s Day as a festival, the resurrection-day, the queen and chief of all the days [of the week].
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Ignatius, Epistle to the Magnesians (Short Version) Supporting witness
If, therefore, those who were brought up in the ancient order of things have come to the possession of a new hope, no longer observing the Sabbath, but living in the observance of the Lord’s Day, on which also our life has sprung up again by Him and by His death—whom some deny, by which mystery we have obtained faith, and therefore endure, that we may be found the disciples of Jesus Christ, our only Master—how shall we be able to live apart from Him, whose disciples the prophets themselves in the Spirit did wait for Him as their Teacher?
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Tertullian, Apology Background
...an obstinate refusal to offer sacrifices, he found in their religious services nothing but meetings early in the morning for singing hymns to Christ and God, and sealing their way of life by a united pledge to remain faithful to their religion, forbidding murder, adultery, dishonesty, and other crimes. In reply, Trajan wrote back that Christians were by no means to be sought out. But if they were brought before him, they should be punished. O miserable deliverance. Under the necessities of the case, it is a self-contradiction. It forbids them to be sought out, as innocent, and it commands them to be punished, as guilty. It is at once merciful and cruel. It passes by, and it punishes. Why do you play this game of evasion with yourself, O Judgment? If you condemn, why do you not also inquire? If you do not inquire, why do you not also absolve? Military stations are set throughout all the provinces for tracking robbers. Against traitors and public enemies every man is a soldier. Search is made even for their confederates and accessories. The Christian alone must not be sought, though he may be brought and accused before the judge, as if a search had any other end than that! And so
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Justin Martyr, The First Apology Background
...ayer to the gods of my country. But, as they did not respond, I called upon those among us known as Christians. Upon investigation, I found a great number and multitude of them and initially acted against them, which was quite inappropriate, as I later understood their power. They began the battle, not with weapons, armor, or bugles, as such preparations are detestable to them because of the God they carry in their conscience. Therefore, it appears that those we think are atheists have God as their guiding force entrenched in their conscience. Throwing themselves on the ground, they prayed not only for me but for the entire army, that we might be saved from the current thirst and hunger. We had been without water for five days because there was none, being deep in Germany, in enemy territory. Simultaneously as they threw themselves on the ground and prayed to God (a God unknown to me), water poured from the sky, refreshingly cool upon us but as withering hail upon Rome's enemies. Immediately we acknowledged the presence of God following their prayer—a God unconquerable and indestructible. Based on this, let us pardon such individuals who are Christians, lest they pray for and ac
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Justin Martyr, Dialogue with Trypho Background
... profane it. The command of circumcision, instructing them always to circumcise the children on the eighth day, was a symbol of the true circumcision. This is where we are circumcised from deceit and sin through Him who rose from the dead on the first day after the Sabbath, that is, through our Lord Jesus Christ. The first day after the Sabbath, while remaining the first of all the days, is also called the eighth according to the number of all the days in the cycle, and yet remains the first."
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Irenaeus, Fragments from the Lost Writings of Irenæus Background
Now this custom took its rise from apostolic times, as the blessed Irenæus, the martyr and bishop of Lyons, declares in his treatise On Easter, in which he makes mention of Pentecost also;
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Origen, Against Celsus Background
If it be objected to us on this subject that we ourselves are accustomed to observe certain days, as for example the Lord's day, the Preparation, the Passover, or Pentecost, I have to answer, that to the perfect Christian, who is ever in his thoughts, words, and deeds serving his natural Lord, God the Word, all his days are the Lord's, and he is always keeping the Lord's day.
Why did early Christians call Sunday the Lord’s Day?
Several early writers explicitly tie the Lord’s Day to Jesus’ resurrection and describe it as a day of joy and thanksgiving. The sources do not present Sunday as an arbitrary custom, but as a day marked out by the resurrection and Christian rejoicing.
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Barnabas, The Epistle of Barnabas Direct teaching
...le to Me, but that which I have made, namely this: when I give rest to all things, I will begin the eighth day, that is, the start of another world. Therefore, we also keep the eighth day with joyfulness, the day on which Jesus rose again from the dead. And when He had revealed Himself, He ascended into the heavens.
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Cyprian, Epistles Direct teaching
...ng in the newly formed and newly born person, when we embrace what God has made. As for keeping the eighth day in the Jewish circumcision of the flesh, a sacrament was given beforehand in shadow and in practice. But when Christ came, it was fulfilled in truth. For since the eighth day, that is, the first day after the Sabbath, was to be the day on which the Lord would rise again, and would give us life, and give us circumcision of the spirit, the eighth day, that is, the first day after the Sabbath, the Lord’s Day, came first as a figure. This figure ceased when the truth came afterward, and spiritual circumcision was given to us.
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Irenaeus, Fragments from the Lost Writings of Irenæus Supporting witness
This [custom], of not bending the knee upon Sunday, is a symbol of the resurrection, through which we have been set free, by the grace of Christ, from sins, and from death, which has been put to death under Him.
More related quotations from this section 6 shown
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Justin Martyr, Dialogue with Trypho Supporting witness
For the first day after the Sabbath, remaining the first of all the days, is called, however, the eighth, according to the number of all the days of the cycle, and [yet] remains the first.
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Irenaeus, Fragments from the Lost Writings of Irenæus Supporting witness
upon which [feast] we do not bend the knee, because it is of equal significance with the Lord’s day, for the reason already alleged concerning it.
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Cyprian, Epistles Supporting witness
For because the eighth day, that is, the first day after the Sabbath, was to be that on which the Lord should rise again, and should quicken us, and give us circumcision of the spirit, the eighth day, that is, the first day after the Sabbath, and the Lord's day, went before in the figure;
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Mathetes, Epistle to Diognetus Background
...ose you are eager to hear about this issue, that Christians do not observe the same forms of divine worship as the Jews. The Jews, if they abstain from the kind of service mentioned earlier and see it as right to worship one God as the Lord of all, are correct. But if they offer Him worship in the manner we described, they are greatly mistaken. For while the Gentiles, by offering such things to those without sense and hearing, display madness; they, by thinking to offer these things to God as if He needed them, might rightly consider it an act of foolishness rather than divine worship. For He who made heaven and earth, and everything in them, and provides us with all we need, surely requires none of those things which He Himself gives to those who think of providing them to Him. But those who believe that by means of blood, and the smoke of sacrifices and burnt-offerings, they offer sacrifices acceptable to Him, and by such honors show Him respect, seem to me to be no different from those who deliberately give the same honor to things without sense, which therefore cannot enjoy such honors.
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Tertullian, Apology Background
In the same way, if we devote Sun-day to rejoicing, from a far different reason than Sun-worship, we have some resemblance to those of you who devote the day of Saturn to ease and luxury, though they too go far away from Jewish ways, of which indeed they are ignorant.
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Irenaeus, Against Heresies: Book I Background
...le, clearly signifies the Ogdoad that brings salvation. David also demonstrates this, as he was the eighth in terms of age among his brothers. Moreover, the circumcision that occurred on the eighth day symbolized the higher Ogdoad's circumcision. In short, whenever they find something in the Scriptures associated with the number eight, they claim it fulfills the mystery of the Ogdoad. Similarly, concerning the Decad, they assert that it is indicated by the ten nations God promised to Abraham as a possession. The arrangement made by Sarah, when after ten years she gave her handmaid Hagar to him so that he might have a son through her, demonstrated the same idea. Additionally, the servant of Abraham who went to Rebekah and gave her ten gold bracelets at the well, her brothers who kept her for ten days, Jeroboam who received the ten scepters (tribes), the ten courts of the tabernacle, the columns ten cubits high, the ten sons of Jacob initially sent to Egypt to buy grain, and the ten apostles to whom the Lord appeared after His resurrection—with Thomas being absent—all, according to them, represented the invisible Decad.
Did early Christians describe Sunday as the eighth day?
A number of early writers describe Sunday as the eighth day and use that language as a symbol of resurrection, new creation, or the fulfillment of the old Sabbath pattern. This is typological teaching, not a standalone proof that every Christian used the same terminology in the same way.
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Tertullian, De Corona Direct teaching
We count fasting or kneeling in worship on the Lord's day to be unlawful.
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Peter of Alexandria, Canonical Epistle Direct teaching
No one should blame us for observing the fourth day of the week and the Preparation, on which we are rightly instructed by tradition to fast. We fast on the fourth day because on that day the Jews made plans to betray the Lord. And we fast on the sixth day because on that day He himself suffered for us. But we celebrate the Lord's Day as a day of joy, because on it He rose again. On that day, we have also received the custom of not even bowing the knee.
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Peter of Alexandria, Canonical Epistle Supporting witness
Zonaras says, "The fourth and sixth days of every week must always be kept as fast days. No one will find fault with us for fasting on those days," and he adds the reasons for this. But we should not fast on the Lord's Day, because it is a day of joy for the Lord's resurrection. And on that day, he says, we have received the rule that we should not even kneel. Therefore, this phrase, "we have received," should be carefully noted. It means that this is commanded to us according to tradition. From this it is clear that a long-established custom was accepted as law. Moreover, the great Basil also adds the reasons why it was forbidden to bend the knee on the Lord's Day, and from Passover to Pentecost. Read also the sixty-sixth and sixty-ninth Apostolical canons.
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Apostolic Constitutions, Apostolic Constitutions Supporting witness
And on the day of our Lord's resurrection, which is the Lord's day, meet more diligently, sending praise to God that made the universe by Jesus, and sent Him to us, and condescended to let Him suffer, and raised Him from the dead.
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Apostolic Constitutions, Apostolic Constitutions Direct teaching
every Sabbath day excepting one, and every Lord's day, hold your solemn assemblies, and rejoice: for he will be guilty of sin who fasts on the Lord's day, being the day of the resurrection, or during the time of Pentecost, or, in general, who is sad on a festival day to the Lord.
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Apostolic Constitutions, Apostolic Constitutions Direct teaching
XXX . On the day of the resurrection of the Lord, that is, the Lord's day, assemble yourselves together, without fail, giving thanks to God, and praising Him for those mercies God has bestowed upon you through Christ, and has delivered you from ignorance, error, and bondage, that your sacrifice may be unspotted, and acceptable to God, who has said concerning His universal Church: In every place shall incense and a pure sacrifice be offered unto me;
More related quotations from this section 4 shown
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Peter of Alexandria, Canonical Epistle Supporting witness
and the reasons he subjoins. But on the Lord's day we ought not to fast, for it is a day of joy for the resurrection of the Lord, and on it, says he, we have received that we ought not even to bow the knee.
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Peter of Alexandria, Canonical Epistle Supporting witness
But the Lord's day we celebrate as a day of joy, because on it He rose again, on which day we have received it for a custom not even to bow the knee.
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Didache, The Teaching of the Twelve Apostles Supporting witness
But every Lord's day gather yourselves together, and break bread, and give thanksgiving after having confessed your transgressions, that your sacrifice may be pure.
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Apostolic Constitutions, Apostolic Constitutions Supporting witness
But do not let your fasts be with the hypocrites, for they fast on the second and fifth days of the week. But you should either fast all five days, or on the fourth day of the week and on the day of the Preparation. For on the fourth day the sentence against the Lord went out, when Judas promised to betray Him for money. And you must fast on the day of the Preparation, because on that day the Lord suffered death on the cross under Pontius Pilate. But keep the Sabbath and the Lord's Day as a festival, because the first is the memorial of creation, and the second is the memorial of the resurrection. But there is only one Sabbath to be observed by you in the whole year, and that is the Sabbath of our Lord's burial. On that day people ought to keep a fast, and not a festival. For since the Creator was then under the earth, sorrow for Him is stronger than joy for the creation. For the Creator is more honorable in nature and dignity than His own creatures.
Common Questions
Did early Christians meet on Sunday?
Yes. Justin Martyr says they gathered on the day called Sunday, and the Didache says to gather on the Lord’s Day and break bread.
Why did early Christians worship on Sunday?
They linked Sunday to Jesus’ resurrection. Justin Martyr, Barnabas, Cyprian, Peter of Alexandria, and the Apostolic Constitutions all say the day was joyful because Christ rose.
Did all early Christians keep Sunday the same way?
No. The core idea is broad, but the exact practice is not always described the same way. Some texts stress assembly and Communion, while others stress not fasting or kneeling.
Source Index for Sunday worship
The guided sections above show the strongest quotations. This compact index highlights 160 ranked source links from 224 compiled sources for deeper study.
Source index 160 ranked links shown
Early Christian Writings 80 shown of 142
Primary-source quotations from early Christian writers and church documents.
Bible Passages 80 shown of 82
Related Bible passages saved for comparison with the early Christian quotations.