John Chrysostom

"For the which cause I also suffer these things, nevertheless I am not ashamed. For I know Whom I have believed, and am persuaded that He is able to keep that which I have committed unto Him against that day." "I am not ashamed," he says. For are chains, are sufferings, a matter for shame? Be not then ashamed! Thou seest how he illustrates his teaching by his works. …

Homily on 2 Timothy 2 ↗

Theophylact of Ohrid

I suffer for preaching to the Gentiles. I suffer not as an evildoer. At the same time he makes his speech more credible: if, he says, I did not believe that death has been destroyed, I would not suffer so. Do you see how he himself shows by his deeds that which he urges upon Timothy, that is, not to be ashamed of sufferings. What boldness! What unwavering confidence! I know, he says, and am firmly convinced. …

Commentary on 2 Timothy ↗

Oecumenius

For this reason I suffer as I do, but I am not ashamed, for I know whom I have believed, and I am convinced that he is able to guard what I have entrusted to him until that day. For this reason I suffer as I do. What then is that reason? Because I am a messenger and an Apostle. As if he were saying: I am not being overcome as a criminal and dragged to prison. but I am not ashamed. For the greatest glory is to suffer something for Christ. Do you see how Paul prepares the disciple for afflictions? …

Commentary On 2 Timothy ↗

Thomas Aquinas

Then when he says, for which cause I also suffer these things, he shows what he is suffering as a result of being faithful to his office, saying, I suffer these adversities, namely, chains and ennui, and this for the faith of Christ: I labor even unto bands (2 Tim 2:9). And he says, for which cause, because suffering of itself is not praiseworthy, but only when it is for a just cause: blessed are they that suffer persecution for justice's sake: for theirs is the kingdom of heaven (Matt 5:10). …

Commentary on 2 Timothy ↗