The priest. — There is no mention of the Levite here. The priest is named as a distinct personage. The words which the priest are to pronounce are, as it were, the blessing of Jehovah on the campaign. It follows that Israel could not lawfully go to war except when the blessing of Jehovah might be invoked.
Related Commentaries of Deuteronomy 20:2
Deuteronomy 20:2
2 And it shall be, when ye are come nigh unto the battle, that the priest shall approach and speak unto the people,