Genesis 22:11-18

11And the angel of the LORD called to him from heaven, and said, Abraham, Abraham: and he said, Here am I. 12And he said, Lay not thy hand upon the lad, neither do thou any thing to him: for now I know that thou fearest God, seeing thou hast not withheld from me thy son, thy only son . 13And Abraham lifted up his eyes, and looked, and behold behind him a ram caught in a thicket by his horns: and Abraham went and took the ram, and offered him for a burnt offering in the stead of his son. 14And Abraham called the name of that place Jehovahjireh: as it is said to this day, In the mount of the LORD it shall be seen.1

15And the angel of the LORD called to Abraham from heaven the second time, 16And said, By myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thy only son : 17That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of heaven, and as the sand which is on the sea shore; and thy seed shall possess the gate of his enemies;2 18And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.