Moses
Numbers 12:2ESV·traditional attribution

And they said, “Has the LORD indeed spoken only through Moses? Has he not spoken through us also?” And the LORD heard it.

John Calvin Reformed @genevareformer

2. And they said, Hath the Lord indeed spoken only by Moses? They pride themselves on their gift of prophecy, which ought rather to have schooled them to humility. But such is the natural depravity of men, not only to abuse the gifts of God unto contempt of their brethren, but so to magnify them by their ungodly and sacrilegious boasting, as to obscure the glory of their Author.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The unbecoming passion of Aaron and Miriam: they spoke against Moses, Num 12:1. If Moses, that received so much honour from God, yet received so many slights and affronts from men, shall any of us think such trials either strange or hard, and be either provoked or discouraged by them? But who would have thought that disturbance should be created to Moses, 1.

Commenting on Numbers 12:1-3

John Gill Reformed Baptist @doctorgill

And they said, hath the Lord, indeed spoken only by Moses?.... They own he had spoken by him; this was so notorious that it could not be denied: hath he not spoken also by us? are we not prophets as well as he?