The angel of Yahweh

Yahweh’s angel called to him out of the sky, and said, “Abraham, Abraham!” He said, “Here I am.” He said, “Don’t lay your hand on the boy or do anything to him. For now I know that you fear God, since you have not withheld your son, your only son, from me.”

Genesis 22:11-12

The angel of Yahweh calls out of the sky to Abraham and tells him not to lay a hand on his son.