this is one of the first passages in the Bible that tells of the 2 programs that God set forth in the Bible. this program aimed at the gentiles..The whole Bible is good...But God has made it clear that with the anointing of Saul into Paul that he was for the first time dealing with Gentiles, thus rightly dividing the bible is important to Christians, the body of Christ. He told Iseral what to do and now he is telling the Gentiles what to do.