Avraham did just that. He tied Yitzchak’s arms and legs behind him, put him on the mizbeach, and raised up the knife to kill his son.
The Midrash tells us that Avraham stood over Yitzchak, “With tears in his eyes and great joy in his heart.” The tears in his eyes were the tears of a father parting with his most beloved son, but there was joy in his heart because of the fantastic opportunity to show Hashem that nothing, not even his most beloved son, was more precious to him than serving his Creator.
And now the question becomes: how is it possible for a man to make the ultimate sacrifice in a manner that seems to transcend every emotional limitation?
Akeidas Yitzchak was a singular event that actualized the years of extraordinary perfection that represented Avraham Avinu’s life. Because he lived in this world, he felt real love for his child, but even that love was something he harnessed to show his greater love of Hashem – the perfect balance of a man in complete control.