Genesis 22:9

And bound Isaac his son - If the patriarch had not been upheld by the conviction that he was doing the will of God, and had he not felt the most perfect confidence that his son should be restored even from the dead, what agony must his heart have felt at every step of the journey, and through all the circumstances of this extraordinary business? What must his affectionate heart have felt at the questions asked by his innocent and amiable son? What must he have suffered while building the altar, laying on the wood, binding his lovely son, placing him on the wood, taking the knife, and stretching out his hand to slay the child of his hopes? Every view we take of the subject interests the heart, and exalts the character of this father of the faithful. But has the character of Isaac been duly considered? Is not the consideration of his excellence lost in the supposition that he was too young to enter particularly into a sense of his danger, and too feeble to have made any resistance, had he been unwilling to submit? Josephus supposes that Isaac was now twenty-five, (see the chronology on Genesis 22:1 (note)); some rabbins that he was thirty-six; but it is more probable that he was now about thirty-three, the age at which his great Antitype was offered up; and on this medium I have ventured to construct the chronology, of which I think it necessary to give this notice to the reader. Allowing him to be only twenty-five, he might have easily resisted; for can it be supposed that an old man of at least one hundred and twenty-five years of age could have bound, without his consent, a young man in the very prime and vigor of life? In this case we cannot say that the superior strength of the father prevailed, but the piety, filial affection, and obedience of the son yielded. All this was most illustriously typical of Christ. In both cases the father himself offers up his only-begotten son, and the father himself binds him on the wood or to the cross; in neither case is the son forced to yield, but yields of his own accord; in neither case is the life taken away by the hand of violence; Isaac yields himself to the knife, Jesus lays down his life for the sheep.