The Council agreed not to make it difficult for Gentiles who turned to God
Acts 15:19-21The Council was concerned to avoid forcing Gentiles to adopt Jewish customs (such as circumcision), and at the same time to require Gentiles to behave considerately towards their “weaker brothers” of Jewish birth, not all of whom could be expected to acquire immediately the emancipated outlook on food-laws and the like that Peter and Paul had.
James showed how the decision had confirmed an earlier prophecy