The didacha (1st Ce) document 14th chapter, verse 1 says"but on the Lord's day, after that you have assembled together, break bread and give thanks, having in addition confessed your sins, that your sacrifice may be pure!" Ever as they gathering we must remember that this is a mobile church, that they still respected Shabbat (on Saturday). Zola Levitt said, there was both the Creation Shabbat and the celebration of the Lord's day gatherings! Shalom my friend. Roddi