Genesis 22:10-12

Young's Literal Translation

¹⁰ and Abraham putteth forth his hand, and taketh the knife -- to slaughter his son.

¹¹ And the messenger of Jehovah calleth unto him from the heavens, and saith, `Abraham, Abraham;' and he saith, `Here [am] I;'

¹² and He saith, `Put not forth thine hand unto the youth, nor do anything to him, for now I have known that thou art fearing God, and hast not withheld thy son, thine only one, from Me.'