Moses
Numbers 21:34BSB·traditional attribution

But the LORD said to Moses, “Do not fear him, for I have delivered him into your hand, along with all his people and his land. Do to him as you did to Sihon king of the Amorites, who lived in Heshbon.”

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of the victories obtained by Israel over Sihon and Og, which must be distinctly considered, not only because they are here distinctly related, but because long afterwards the memorial of them is distinctly celebrated, and they are severally assigned as instances of everlasting mercy.

Commenting on Numbers 21:21-35

Jamieson-Fausset-Brown Reformed @jfbcommentary

The Lord said unto Moses, Fear him not--a necessary encouragement, for Og's gigantic stature (Deu 3:11) was calculated to inspire terror. He and all his were put to the sword. Next: Numbers Chapter 22

Keil & Delitzsch Lutheran @keilanddelitzsch

Num 21:33-35 The Israelites then turned towards the north, and took the road to Bashan, where king Og came against them with his people, to battle at Edrei. From what point it was that the Israelites entered upon the expedition against Bashan, is not stated either here or in Deu 3:1., where Moses recapitulates these events, and gives a more detailed account of the conquests...

Commenting on Numbers 21:33-35