4 And when his father had offered him upon the altar and had bound his feet to slay him, the Most Mighty hasted and sent forth his voice from on high saying: Kill not thy son, neither destroy the fruit of thy body: for now have I showed forth myself that I might appear to them that know me not, and have shut the mouths of them that always speak evil against thee. And thy memorial shall be before me for ever, and thy name and the name of this thy son from one generation to another.

"And the angel of Ad-nai called to him out of heaven, and said: Abraham, Abraham" (Gen. 22:11). Rabbi Hiya taught: This is an expression of love, this is an expression of urging. Rabbi Eliezer ben Yaakov said: He spoke to him and to future generations, there is no generation which does not contain people like Avraham, and there is no generation which does not contain people like Yaakov, Moshe, and Shmuel. And he said: "Do not lay your hand etc." (Gen. 22:12) Where was the knife? Three tears had fallen from the angels of service and the knife dissolved. Avraham said: ‘I will strangle him,’ He said: ‘Do not lay your hand upon the lad.’ [Avraham] said ‘I will take a drop of blood from him’ - He said to him: ‘Neither do anything [me'uma] to him’ [meaning] inflict no blemish [muma] upon him. "Because now I know" [meaning] I have made it known to all that you love Me, "and you have not withheld, etc". And do not say that all ills that do not affect one’s own body are not ills, rather I ascribe merit to you as though I had told to you to sacrifice yourself and you did not refuse.