Genesis 15:4

15:4 But look, the word of the Lord came to him: “This man will not be your heir, but instead a son who comes from your own body will be your heir.”

Genesis 15:6

15:6 Abram believed the Lord, and the Lord considered his response of faith as proof of genuine loyalty.

Genesis 15:8

15:8 But Abram said, “O sovereign Lord, by what can I know that I am to possess it?”