Moses
Exodus 28:42BSB·traditional attribution

Make linen undergarments to cover their bare flesh, extending from waist to thigh.

John Calvin Reformed @genevareformer

42. And thou shalt make them linen breeches. Since men, in their natural levity and frowardness, lay hold of the very slightest causes of offense to the disparagement of holy things, and so religion easily sinks into contempt, God here, as a precaution against such a danger, delivers a precept respecting an apparently trivial matter, viz., that the priests should cover their nakedness with breeches.

Matthew Henry Presbyterian @wholebiblehenry

We have here, 1. Particular orders about the vestments of the inferior priests. They were to have coats, and girdles, and bonnets, of the same materials with those of the high priest; but there was a difference in shape between their bonnets and his mitre.

Commenting on Exodus 28:40-43

John Gill Reformed Baptist @doctorgill

And they shall be upon Aaron and upon his sons,.... Not the linen breeches only, but all the other garments: when they come into the tabernacle of the congregation; even into that part of it where the people assembled, the court of the tabernacle, and where stood the altar of burnt offering, on which they offered the sacrifices of the people, but never without the...