Genesis 18:10 Book: Genesis 18 And he said, I will certainly return unto thee when the season cometh round; and, lo, Sarah thy wife shall have a son. And Sarah heard in the tent door, which was behind him.
Romans 4:5 Book: Romans 4 But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is reckoned for righteousness.