"This above all is wondrous," says St. John Chrysostom, "and it is the greatest miracle of God's power, that an earthen vessel can contain such light and guard this treasure. For then the power of God is especially seen, when through weak instruments He accomplishes great deeds.
This is clear from what the Lord said to this same Apostle: 'My strength is made perfect in weakness' (12:9). Sending only twelve men, He subdued the whole world, and this when those twelve were persecuted.
Whence came such power of persuasion? From nowhere else but the power of God. The newness of the preaching was opposed to everyone, and the preachers came from a people despised by all, poor and unlearned.
How then did they subdue the whole world? Does this not clearly show that they had God as their helper? Such effects do not belong to human strength, but to the almighty power of God."
"And not only this," he says, "is wondrous, that we keep this treasure in earthen vessels. It is also wondrous that, while undergoing countless afflictions and being struck from every side, we preserve it and do not lose it.
Even a vessel of adamant could not withstand such assaults. Yet now an earthen vessel remains unharmed by the grace of God, and the treasure is preserved."
In particular, the earthen vessel means earthly existence. Yet the Apostles were strengthened by hope in the resurrection and the life to come. Clear proofs of these were constantly given in the Apostles' life, filled with many mortal dangers from which they nevertheless emerged alive.
"If anyone does not believe," says St. John Chrysostom in the person of the Apostles, "that Jesus died and rose again, let him be assured of the truth of the resurrection by seeing us daily dying and rising.
When Christ snatches us from the dangers of death, the life of Jesus is thereby manifested in our body. For His power would not be so visible if we never suffered, as it is now, when we suffer and remain unconquered."
"These words may also be understood in another way" (verse 11). How? As he says elsewhere: "If we died with Christ, we believe that we shall also live with Him" (Rom 6:8).
For as we bear His death and choose now to die alive for His sake, so He is well pleased then to make us alive after death (cf. Rom 8:17).
"Besides this, eternal life is revealed through the Apostles' great preaching labors in those who profit from them, such as the Corinthians. Therefore they can in no way despise the Apostles because they are in straitened circumstances."