At the very moment when Abraham raised his knife to kill Isaac, Jehovah’s angel said: “Do not put out your hand against the boy and do not do anything at all to him, for now I do know that you are God - fearing in that you have not withheld your son, your only one, from me. ” ​ — Genesis 22: 10 - 12.
( 1. Mozus 22: 10 — 12.)