Albert Barnes' Notes on the Whole Bible - Deuteronomy 20:2
The priest - Not the high priest, but one appointed for the purpose, and called, according to the rabbis, “the anointed of the war”: hence, perhaps the expression of Jeremiah 6:4, etc. “prepare ye” (literally consecrate) “war.” Thus, Phinehas went with the warriors to fight against Midian (Numbers 31:6; compare 1Sa 4:4, 1 Samuel 4:11; 2 Chronicles 13:12). read more
The Pulpit Commentary - Deuteronomy 20:2
The priest. Not the high priest or any one of the priests, but the military priest, the priest appointed to accompany the army, "the anointed for the war;" משׁיח המלחמה , as the rabbins designate him (cf. Numbers 21:6 ; 1 Samuel 4:4 ; 2 Chronicles 13:12 ). His business was to exhort the people, and to encourage them by reminding them that the Lord was their Leader, and would help them in the conflict. The formula of his exhortation is given in Deuteronomy 20:3 , Deuteronomy... read more