Moses
Deuteronomy 3:5BSB·traditional attribution

All these cities were fortified with high walls and gates and bars, and there were many more unwalled villages.

Matthew Henry Presbyterian @wholebiblehenry

We have here another brave country delivered into the hand of Israel, that of Bashan; the conquest of Sihon is often mentioned together with that of Og, to the praise of God, the rather because in these Israel's triumphs began, Psa 135:11; Psa 136:19, Psa 136:20. See, I. How they got the mastery of Og, a very formidable prince, 1.

Commenting on Deuteronomy 3:1-11

John Gill Reformed Baptist @doctorgill

All these cities were fenced with high walls, gates, and bars,.... That is, all the cities in the kingdom of Bashan; and though they were, it hindered not their falling into the hands of the Israelites; and this might serve to encourage them against those fears they were possessed of by the spies, with respect to the cities in the land of Canaan; see Num 13:28.

Geneva Bible Notes Reformed @genevanotes

All these cities [were] fenced with high walls, gates, and bars; beside unwalled towns a great many. (b) As villages and small towns.