{21} Thou fool, that which thou sowest is not quickened, except it die:

(21) You might have learned either of these, Paul says, by daily experience: for seeds are sown, and rot, and yet nonetheless they are far from perishing, but rather they grow up far more beautiful. And whereas they are sown naked and dry, they spring up green from death by the power of God: and does it seem incredible to you that our bodies should rise from corruption, and that endued with a far more excellent quality?

People's New Testament

15:36 Thou fool. The idea is, slow of understanding. Why cannot you learn the lesson nature teaches?

That which thou sowest is not quickened, except it die. The grain that thou sowest has to die and be dissolved before it comes forth in a new life. So the body must die and be dissolved.

Wesley's Notes

15:36 To the inquiry concerning the manner of rising, and the quality of the bodies that rise, the Apostle answers first by a similitude, 1Cor 15:36 - 42, and then plainly and directly, 1Cor 15:42,43. That which thou sowest, is not quickened into new life and verdure, except it die - Undergo a dissolution of its parts, a change analogous to death. Thus St. Paul inverts the objection; as if he had said, Death is so far from hindering life, that it necessarily goes before it.

Jamieson-Fausset-Brown Bible Commentary

36. fool-with all thy boasted philosophy (Ps 14:1).

that which thou-"thou," emphatical: appeal to the objector's own experience: "The seed which thou thyself sowest." Paul, in this verse and in 1Co 15:42, answers the question of 1Co 15:35, "How?" and in 1Co 15:37-41, 43, the question, "With what kind of body?" He converts the very objection (the death of the natural body) into an argument. Death, so far from preventing quickening, is the necessary prelude and prognostication of it, just as the seed "is not quickened" into a new sprout with increased produce, "except it die" (except a dissolution of its previous organization takes place). Christ by His death for us has not given us a reprieve from death as to the life which we have from Adam; nay, He permits the law to take its course on our fleshly nature; but He brings from Himself new spiritual and heavenly life out of death (1Co 15:37).

Matthew Henry's Concise Commentary

15:35-50 1. How are the dead raised up? that is, by what means? How can they be raised? 2. As to the bodies which shall rise. Will it be with the like shape, and form, and stature, and members, and qualities? The former objection is that of those who opposed the doctrine, the latter of curious doubters. To the first the answer is, This was to be brought about by Divine power; that power which all may see does somewhat like it, year after year, in the death and revival of the corn. It is foolish to question the Almighty power of God to raise the dead, when we see it every day quickening and reviving things that are dead. To the second inquiry; The grain undergoes a great change; and so will the dead, when they rise and live again. The seed dies, though a part of it springs into new life, though how it is we cannot fully understand. The works of creation and providence daily teach us to be humble, as well as to admire the Creator's wisdom and goodness. There is a great variety among other bodies, as there is among plants. There is a variety of glory among heavenly bodies. The bodies of the dead, when they rise, will be fitted for the heavenly bodies. The bodies of the dead, when they rise, will be fitted for the heavenly state; and there will be a variety of glories among them. Burying the dead, is like committing seed to the earth, that it may spring out of it again. Nothing is more loathsome than a dead body. But believers shall at the resurrection have bodies, made fit to be for ever united with spirits made perfect. To God all things are possible. He is the Author and Source of spiritual life and holiness, unto all his people, by the supply of his Holy Spirit to the soul; and he will also quicken and change the body by his Spirit. The dead in Christ shall not only rise, but shall rise thus gloriously changed. The bodies of the saints, when they rise again, will be changed. They will be then glorious and spiritual bodies, fitted to the heavenly world and state, where they are ever afterwards to dwell. The human body in its present form, and with its wants and weaknesses, cannot enter or enjoy the kingdom of God. Then let us not sow to the flesh, of which we can only reap corruption. And the body follows the state of the soul. He, therefore, who neglects the life of the soul, casts away his present good; he who refuses to live to God, squanders all he has.