Instructions of the Jerusalem Council to the new congregations of former heathens:

Acts 15:19. On this account I judge that we should not cause difficulty for those of the heathens who are turning to God, 20. but to instruct them to abstain from the pollutions of the idols and from immorality and from the meat of strangled animals and from the blood. (Leviticus 17:10) 21. For throughout every city from ancient generations Moses has those who preach him, since he is read in the synagogues on every Sabbath.”