Of all the sacrifices recorded in the book of Genesis, none comes so near the great antitypical offering as the one required of Abraham when God called him to offer his only son.
The test of faith was not simply in the fact that Isaac was his only legitimate son, but Abraham understood that through Isaac's posterity the long-promised Messiah was to come; and in offering Isaac, Abraham was cutting off his only hope of salvation, as well as that of the world.
But his faith wavered not.
He believed that the same God who had performed a miracle in giving him a son, could bring that son from the dead to fulfill the promise that He had made.
(By faith Abraham, when God tested him, offered Isaac as a sacrifice. He who had embraced the promises was about to sacrifice his one and only son, even though God had said to him, “It is through Isaac that your offspring will be reckoned.” Abraham reasoned that God could even raise the dead, and so in a manner of speaking he did receive Isaac back from death. Hebrews 11:17-19)."
Stephen Haskell