Hebrews 6:15NET Bible

Genesis 17:5

No longer will your name be Abram. Instead, your name will be Abraham because I will make you the father of a multitude of nations.

Genesis 17:9

Then God said to Abraham, "As for you, you must keep the covenantal requirement I am imposing on you and your descendants after you throughout their generations.

Genesis 17:15

Then God said to Abraham, "As for your wife, you must no longer call her Sarai; Sarah will be her name.

Genesis 17:17

Then Abraham bowed down with his face to the ground and laughed as he said to himself, "Can a son be born to a man who is a hundred years old? Can Sarah bear a child at the age of ninety?"

Genesis 17:18

Abraham said to God, "O that Ishmael might live before you!"