Genesis 22:13

Abraham... looked, and behold, behind him. ram.

Here occurs the wonderful substitution, in which God set forth as in. figure the plan of the Mosaic economy, for the offering of animal victims instead of human sacrifices--animal offerings for the sins of men, pointing forward to the only acceptable substitute whom they foreshadowed, who is God's Lamb--not man's--the Lamb of God's providing, his only begotten Son.

In the stead of his Son.

As the Lord provided. sacrifice instead of Isaac, so he has provided. "Lamb," instead of ourselves.