Moses
Deuteronomy 9:16ESV·traditional attribution

And I looked, and behold, you had sinned against the LORD your God. You had made yourselves a golden calf. You had turned aside quickly from the way that the LORD had commanded you.

Matthew Henry Presbyterian @wholebiblehenry

That they might have no pretence to think that God brought them to Canaan for their righteousness, Moses here shows them what a miracle of mercy it was that they had not long ere this been destroyed in the wilderness: "Remember, and forget not, how thou provokedst the Lord thy God (Deu 9:7); so far from purchasing his favour, thou hast many a time laid...

Commenting on Deuteronomy 9:7-29

John Gill Reformed Baptist @doctorgill

And I looked,.... When he was come down from the mount, and was nigh the camp: and, behold, ye had sinned against the Lord your God; that plainly appeared by what they had done, and at which he was amazed; and therefore a behold is prefixed to it, it being such a gross sin, having so much impiety and ingratitude, and stupidity in it: and...

Geneva Bible Notes Reformed @genevanotes

And I looked, and, behold, ye had sinned against the LORD your God, [and] had made you a molten calf: ye had turned aside quickly out of the way which the LORD had commanded you. (k) That is, from the Law: in which he declares what the cause of our punishment is.