Genesis 22:10–12

10 Then Abraham reached out and took the knife to slaughter his son.

11 But the angel of the Lord called to him from heaven and said, “Abraham, Abraham!”

He replied, “Here I am.”

12 Then he said, “Do not lay a hand on the boy or do anything to him. For now I know that you fear God, since you have not withheld your only son from me.”b