Genesis 17: 1-7, 15-16

1: When Abram was ninety nine years old, the Lord appeared to Him and said, ‘I am God Almighty. Live always in my presence and be blameless,
2: so that I may make my covenant with you: you are to be the father of many nations.

3: Abram bowed low, and God went on,

4: ‘This is my covenant with you: you are to be the father of many nations.

5: Your name will no longer be Abram, but Abraham; for I shall make you father of many nations.

6: I shall make you exceedingly fruitful; I shall make nations out of you and kings shall spring form you.

7: I shall maintain my covenant with you and your descendants after you, generation after generation, an everlasting covenant: I shall be your God, yours and your descendants.’

15: God said to Abraham, ‘As for Sarai your wife, you are to call her not Sarai, but Sarah.

16: I shall bless her and give you a son by her. I shall bless her and she will be the mother of nations; from her kings will spring