Genesis 22:9-11

King James Version

⁹ And they came to the place which God had told him of; and Abraham built an altar there, and laid the wood in order, and bound Isaac his son, and laid him on the altar upon the wood.

¹⁰ And Abraham stretched forth his hand, and took the knife to slay his son.

¹¹ And the angel of the Lord called unto him out of heaven, and said, Abraham, Abraham: and he said, Here am I.