Genesis 25:21 Isaac prayed to the Lord on behalf of his wife because she was childless. The Lord was receptive to his prayer, and his wife Rebekah conceived.

Genesis 22:1, 2 After these things God tested Abraham and said to him, “Abraham!” “Here I am,” he answered. “Take your son,” he said, “your only son Isaac, whom you love, go to the land of Moriah, and offer him there as a burnt offering on one of the mountains I will tell you about.”

Genesis 17:1, 2 When Abram was ninety-nine years old, the Lord appeared to him, saying, “I am God Almighty. Live in my presence and be blameless. I will set up my covenant between me and you, and I will multiply you greatly.”

Genesis 15:5, 6 He took him outside and said, “Look at the sky and count the stars, if you are able to count them.” Then he said to him, “Your offspring will be that numerous.” Abram believed the Lord, and he credited it to him as righteousness.

Genesis 8:15, 16 Then God spoke to Noah, “Come out of the ark, you, your wife, your sons, and your sons’ wives with you.“