Genesis 22:10

Isaac spoke to Abraham his father, and said, “My father?”

He said, “Here I am, my son.”

He said, “Here is the fire and the wood, but where is the lamb for a burnt offering?”

Abraham said, “God will provide himself the lamb for a burnt offering, my son.” So they both went together.

They came to the place which God had told him of. Abraham built the altar there, and laid the wood in order, bound Isaac his son, and laid him on the altar, on the wood.

The LORD’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.”

Abraham lifted up his eyes, and looked, and saw that behind him was a ram caught in the thicket by his horns. Abraham went and took the ram, and offered him up for a burnt offering instead of his son.