The Apostle Paul
Philippians 4:13ESV·traditional attribution

I can do all things through him who strengthens me.

John Calvin Reformed @genevareformer

13 I can do all things through Christ As he had boasted of things that were very great, “De choses grandes et excellentes;” — “Of things great and excellent.” in order that this might not be attributed to pride or furnish others with occasion of foolish boasting, he adds, that it is by Christ that he is endowed with this fortitude.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we have the thankful grateful acknowledgment which the apostle makes of the kindness of the Philippians in sending him a present for his support, now that he was a prisoner at Rome. And here, I. He takes occasion to acknowledge their former kindnesses to him, and to make mention of them, Phi 4:15, Phi 4:16.

Commenting on Philippians 4:10-19

John Gill Reformed Baptist @doctorgill

I can do all things,.... Which must not be understood in the greatest latitude, and without any limitation; for the apostle was not omnipotent, either in himself, or by the power of Christ; nor could he do all things that Christ could do; but it must be restrained to the subject matter treated of: the sense is, that he could be content in every state...