Moses
Deuteronomy 20:5ESV·traditional attribution

Then the officers shall speak to the people, saying, ‘Is there any man who has built a new house and has not dedicated it? Let him go back to his house, lest he die in the battle and another man dedicate it.

John Calvin Reformed @genevareformer

5. And the officers shall speak unto the people. I have added the commencement, “quum bellandum erit,” (when there shall be war,) that my readers may know what is the subject here discussed; for although the instruction given may seem somewhat remote from the prohibition of theft, still it accords well, and is closely connected with it.

Matthew Henry Presbyterian @wholebiblehenry

Israel was at this time to be considered rather as a camp than as a kingdom, entering upon an enemy's country, and not yet settled in a country of their own; and, besides the war they were now entering upon in order to their settlement, even after their settlement they could neither protect nor enlarge their coast without hearing the alarms of war.

Commenting on Deuteronomy 20:1-9

John Gill Reformed Baptist @doctorgill

And the officers shall speak unto the people,.... What these officers were is not easy to say; they seem not to be officers of the army, for they are distinguished from captains of the armies, Deu 20:9, unless they can be thought to be general officers; but the word for them is the same that is used of such that attended the judges and were...