Genesis 22:16-18

16 and said, "By myself I have sworn, says the Lord: Because you have done this, and have not withheld your son, your only son,
17 I will indeed bless you, and I will make your offspring as numerous as the stars of heaven and as the sand that is on the seashore. And your offspring shall possess the gate of their enemies,
18 and by your offspring shall all the nations of the earth gain blessing for themselves, because you have obeyed my voice."