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.
All Commentaries on John 12:24 Go To John 12
Cyril of Alexandria
AD 444
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 living also; if indeed the doctrine is made faithfully to correspond to the form of the parable. For the life of all men, both of dead and living, is a fruit of the sufferings of Christ. For the death of Christ became a seed of life.
Can it be then that the Divine Nature of the Word became capable of death? Surely it were altogether impious to say this. For the Word of God the Father is in His Nature Life: He raises to life, but He does not fall: He brings death to naught, He is not made subject to corruption: He quickens that which lacks life, but seeks not His own life from another. For even as light could not become darkness, so it is impossible that Life should cease to be life. How then is the same Person said to fall into the earth as a grain of wheat, and also to "go up" as "God with a shout?" Surely it is evident that to taste of death was fitting for Him, inasmuch as He became Man: but nevertheless to go up in the manner of God, was His own natural prerogative.