The Apostle Paul
1 Corinthians 9:22ESV·traditional attribution

To the weak I became weak, that I might win the weak. I have become all things to all people, that by all means I might save some.

John Calvin Reformed @genevareformer

22. To the weak I became as weak Now again he employs a general statement, in which he shows to what sort of persons he accomodated himself, and with what design. He judaized in the presence of the Jews, but not before them all, for there were many headstrong persons, who, under the influence of Pharisaical pride or malice, would have wished that Christian liberty were altogether taken away.

Matthew Henry Presbyterian @wholebiblehenry

The apostle takes occasion from what he had before discoursed to mention some other instances of his self-denial and parting with his liberty for the benefit of others. I. He asserts his liberty (Co1 9:19): Though I be free from all men. He was free-born, a citizen of Rome.

Commenting on 1 Corinthians 9:19-23

John Gill Reformed Baptist @doctorgill

And this I do for the Gospel's sake,.... The Alexandrian copy and some others read, "all things I do", &c. and so the Vulgate Latin and Ethiopic versions; that is, he became all things to all men, and so and so to different persons; not for his own sake, for his own temporal advantage, or to curry favour with men; not for the sake of...