6 God spoke to him in this way: ‘For four hundred years your descendants will be strangers in a country not their own, and they will be enslaved and mistreated. 7 But I will punish the nation they serve as slaves,’ God said, ‘and afterward they will come out of that country and worship me in this place.’[b] 8 Then he gave Abraham the covenant of circumcision. And Abraham became the father of Isaac and circumcised him eight days after his birth. Later Isaac became the father of Jacob, and Jacob became the father of the twelve patriarchs.
51 “You stiff-necked people! Your hearts and ears are still uncircumcised. You are just like your ancestors: You always resist the Holy Spirit! 52 Was there ever a prophet your ancestors did not persecute? They even killed those who predicted the coming of the Righteous One. And now you have betrayed and murdered him— 53 you who have received the law that was given through angels but have not obeyed it.”