The Apostle Paul
Colossians 1:24ESV·traditional attribution

Now I rejoice in my sufferings for your sake, and in my flesh I am filling up what is lacking in Christ’s afflictions for the sake of his body, that is, the church,

John Calvin Reformed @genevareformer

24. I now rejoice. He has previously claimed for himself authority on the ground of his calling. Now, however, he provides against the honor of his apostleship being detracted from by the bonds and persecutions, which he endured for the sake of the gospel. For Satan, also, perversely turns these things into occasions of rendering the servants of God the more contemptible.

Matthew Henry Presbyterian @wholebiblehenry

Here is a summary of the doctrine of the gospel concerning the great work of our redemption by Christ. It comes in here not as the matter of a sermon, but as the matter of a thanksgiving; for our salvation by Christ furnishes us with abundant matter of thanksgiving in every view of it: Giving thanks unto the Father, Col 1:12.

Commenting on Colossians 1:12-29

John Gill Reformed Baptist @doctorgill

Who now rejoice in my sufferings for you,.... The apostle, as soon as he had made mention of his being a minister of the Gospel, thinks and speaks of his "sufferings"; for those are what always more or less attend persons in such an office; they are appointed to them by God; Christ has foretold them of them; they are necessary for them; they must...