Hebrews 11:17-19

Living Bible

¹⁷ While God was testing him, Abraham still trusted in God and his promises, and so he offered up his son Isaac and was ready to slay him on the altar of sacrifice; ¹⁸ yes, to slay even Isaac, through whom God had promised to give Abraham a whole nation of descendants!

¹⁹ He believed that if Isaac died God would bring him back to life again; and that is just about what happened, for as far as Abraham was concerned, Isaac was doomed to death, but he came back again alive!