John Chrysostom
"But the Lord said to me: My grace is sufficient for you, for My power is made perfect in weakness" (2 Cor 12:9). That is: It is enough for you that you raise the dead, heal the blind, cleanse lepers, and work other miracles. Do not seek to live in safety, without fear, and to preach without labor. But are you grieving and sorrowing? Do not ascribe to My weakness the fact that many plot against you, beat you, persecute you, and scourge you. This very thing shows My power. "For My power is made perfect in weakness," that is, when you, being persecuted, prevail over persecutors. When you, being pursued, conquer your pursuers. When you, being bound, put to flight those who bind you. Therefore do not desire what is excessive. Do you notice how the Apostle presents one reason, and God another?
Read more (263 words)
He says, "Lest I be exalted above measure, there was given to me a thorn in the flesh." But God said that He permits this for the manifestation of His power. Therefore you ask not only for something excessive, but even for something that would obscure the glory of My might. The words "sufficient for you" show that nothing further needs to be added, but that everything has been done. From this also it is clear that he is not speaking here of a headache. The sick did not preach, and they would not have been able to preach. Rather, he speaks of how the Apostles, though persecuted and pursued, overcame everything. Having heard such an answer, Paul says, "Therefore I will most gladly boast in my infirmities." So that the Corinthians would not lose heart when they saw the false apostles boasting of the very opposite, while the true Apostles endured persecutions, Paul shows that through persecutions he becomes still more glorious. In this especially the power of God is revealed. What happens to him is worthy of boasting. Therefore he says, "I will most gladly boast." "I did not say from sorrow what I listed above, or what I now mention, namely, that a thorn in the flesh was given to me. On the contrary, I am adorned by this, and I draw upon myself still greater power from God." Therefore he adds, "that the power of Christ may dwell in me." Here he also implies something else: in the measure that temptations increased, grace also increased and abode in him.