Genesis 22:12-18

And he said, Lay not thy hand upon the lad, neither do thou anything unto him; for now I know that thou fearest God, seeing thou hast not withheld thy son, thine only son, from me. And Abraham lifted up his eyes, and looked, and, behold, behind him a ram caught in the thicket by his horns: and Abraham went and took the ram, and offered him up for a burnt-offering in the stead of his son. And Abraham called the name of that place Jehovah-jireh: as it is said to this day, In the mount of Jehovah it shall be provided. And the angel of Jehovah called unto Abraham a second time out of heaven, and said, By myself have I sworn, saith Jehovah, because thou hast done this thing, and hast not withheld thy son, thine only son, that in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heavens, and as the sand which is upon the sea-shore; and thy seed shall possess the gate of his enemies; and in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.