The Apostle Paul
Romans 9:20ESV·traditional attribution

But who are you, O man, to answer back to God? Will what is molded say to its molder, “Why have you made me like this?”

John Calvin Reformed @genevareformer

20. But, O man! who art thou? etc. “But” is not sufficiently emphatical here; μενοῦνγε; “yes, verily,” in Romans 10:18; “yea, rather,” in Luke 11:28; “doubtless,” in Philippians 3:8; it may be rendered here, “nay, rather.” — Ed. As it is a participle in Greek, we may read what follows in the present tense, who disputest, or contendest, or strivest in opposition to God; for...

Matthew Henry Presbyterian @wholebiblehenry

The apostle, having asserted the true meaning of the promise, comes here to maintain and prove the absolute sovereignty of God, in disposing of the children of men, with reference to their eternal state. And herein God is to be considered, not as a rector and governor, distributing rewards and punishments according to his revealed laws and covenants, but as an owner and benefactor, giving...

Commenting on Romans 9:14-24

John Gill Reformed Baptist @doctorgill

Hath not the potter power over the clay,.... By the power the potter has over the clay, to shape it in what form he pleases, and out of it to make what vessels he pleases, and for what purposes he thinks fit, which will be most to his own advantage, the apostle expresses the sovereign and unlimited powder which God has over his creatures; the...