The offering of Isaac on Moriah
God tested Abraham, who bound Isaac on the altar at Moriah before the angel of the LORD stayed his hand and a ram was provided (Genesis 22:9-14). Isaac was no small child; he himself carried the wood for the offering up the mountain (Genesis 22:6), and Ussher, citing Josephus, reckons him about 25 years old, in the prime of his strength.
1Some time later God tested Abraham and said to him, “Abraham!” “Here I am,” he answered. 2“Take your son,” God said, “your only son Isaac, whom you love, and go to the land of Moriah. Offer him there as a burnt offering on one of the mountains, which I will show you.” 3So Abraham got up early the next morning, saddled his donkey, and took along two of his servants and his son Isaac. He split the wood for a burnt offering and set out for the place God had designated.