Verily, verily, I say unto you, Except a grain of wheat falls into the ground and dies, it abides alone: but if it dies, it brings forth much fruit.
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Cornelius a Lapide
AD 1637
Verily, verily, I say unto you, Except a corn of wheat, &c. Christ teaches us that His glorification would come to Him through the death of the Cross, lest the Apostles and the faithful should be offended at it. Hear S. Augustine (in loc.), "Jesus by this meant Himself. For He was the grain of wheat which had to die, and be multiplied; to die through the unbelief of the Jews, to be multiplied by the faith of all people." This means, that as a grain of wheat thrown into the ground does not germinate except it die, but if it die it germinates and brings forth much fruit; Song of Solomon , in like manner, I must needs die, that by the merits and through the example of my death, I may bring forth many eminent and striking fruits of virtue and faith: I mean the many thousands of Martyrs, Virgins, Doctors, and Confessors, all over the world in the present and future ages. This also comes to pass in the death of Martyrs, when one dies, and many spring up in his place, and embrace the faith of...
He not only foretells His suffering and the nearness of the time, but He also alleges the reason why He counted His suffering most precious, saying that the benefit of His passion would be great; for else He would not have chosen to suffer, for He suffered not unwillingly. For by reason of His clemency towards us, He displayed such great and tender kindness as deliberately to endure cruelties of all kinds for our sake. And even as a grain of wheat sown in the earth shoots forth many ears of corn, not receiving through them any loss to itself, but being present by its power in all the grains of every ear; for out of it they all shot forth: so also the Lord died, and opening the recesses of the earth, brought up with Himself the souls of men, Himself being in them all according to the doctrine of the faith, over and above His own separate and distinct existence. And it is not to the dead only that He has granted the power of receiving the fruits of the benefit He brings, but to the livin...
Unless the grain of wheat. The comparison is this, that as the seed must be changed, and corrupted in the ground, before it fructify, so the world would not be converted but by Christ's death. (Witham)
By this grain of corn our Saviour means himself, who was to die by the infidelity of the Jews, and be multiplied by the faith of the Gentiles. (St. Augustine, tract. 51. in Joan.)