Acts 7:6-10

6And this is, in effect, what God spoke [to him]: That his descendants would be aliens (strangers) in a foreign land, and that they would be enslaved and mistreated for four hundred years.

7‘And I will judge any nation to whom they will be in bondage,’ said God, ‘and after that they will come out and serve Me [in worship] in this place.’

8And God gave Abraham a covenant [a formal agreement to be strictly observed] of [which] circumcision [was the sign]; and so [under these circumstances] Abraham became the father of Isaac, and circumcised him on the eighth day; and Isaac [became the father] of Jacob, and Jacob [became the father] of the twelve patriarchs.

9“The [ten elder] patriarchs, overwhelmed with jealousy, sold [their younger brother] Joseph into [slavery in] Egypt; but God was with him,

10and He rescued him from all his suffering, and gave him favor and wisdom in the sight of Pharaoh, king of Egypt, and he made Joseph governor over Egypt and over his entire household.