In his First Apology, a letter of defense written to Roman emperor, Antonius Pius, 161-180, Justin described simple Christian worship services and practices, explaining:
…after we have thus washed him who has been convinced (converted to Christianity) and has assented to our teaching, we bring him to the place where those who are called brethren are assembled, in order that we may offer hearty prayers in common for ourselves and for the baptized person, …so that we may be saved with an everlasting salvation. Having ended the prayers, we salute one another with a kiss. There is then brought to the president of the brethren bread and a cup of wine mixed with water; and he taking them, gives praise and glory to the Father of the universe, through the name of the Son and of the Holy Ghost, and offers thanks at considerable length for our being counted worthy to receive these things at His hands. And when he has concluded the prayers and thanksgivings, all the people present express their assent by saying Amen. … And when the president has given thanks, and all the people have expressed their assent, those who are called by us deacons give to each of those present to partake of the bread and wine mixed with water over which the thanksgiving was pronounced, and to those who are absent they carry away a portion…And this food is called among us Eucharistia or [the Eucharist], of which no one is allowed to partake but the man who believes that the things which we teach are true, and who has been washed with the washing that is for the remission of sins, and unto regeneration, and who is so living as Christ has enjoined. … we been taught that the food which is blessed by the prayer of His word, and from which our blood and flesh by transmutation are nourished, is the flesh and blood of that Jesus who was made flesh. For the apostles, in the memoirs composed by them, which are called Gospels, have thus delivered unto us what was enjoined upon them; that Jesus took bread, and when He had given thanks, said, “This do ye in remembrance of Me, this is My body;” and that, after the same manner, having taken the cup and given thanks, He said, “This is My blood;” and gave it to them alone.[46]
Despite Ignatius’ rejection of Judaizing, see above, Christianity continued many of the patterns of Judaism, adapting to Christian use synagogue liturgical worship, prayer, use of Sacred Scripture, a priesthood, a religious calendar commemorating on certain days each year certain events and/or beliefs, use of music in worship, giving material support to the religious leadership, and practices such as fasting and almsgiving and baptism.
Christians adopted as their Bible the Greek translation of the Jewish Scriptures known as the Septuagint and later also canonized the books of the New Testament. There are however many phrases which appear to be quotations and other statements of fact, in the early church fathers, which cannot be found in the Bible as we know it. For example in Clement’s First Letter he states that Paul “reached the limits of the West”, and also appears to quote a variant form of Ezek 33.
en.wikipedia.org/wiki/Early_Christianity
