Genesis 22:12-13

12The Lord said, “Do not reach out [with the knife in] your hand against the boy, and do nothing to [harm] him; for now I know that you fear God [with reverence and profound respect], since you have not withheld from Me your son, your only son [of promise].”

13Then Abraham looked up and glanced around, and behold, behind him was a ram caught in a thicket by his horns. And Abraham went and took the ram and offered it up for a burnt offering (ascending sacrifice) instead of his son.