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 1 Samuel 4:4, 1 Samuel 4:11; 2 Chronicles 13:12).

The priest shall approach, and speak unto the people - The priest on these occasions was the representative of that God whose servant he was, and whose worship he conducted. It is remarkable that almost all ancient nations took their priests with them to battle, as they did not expect success without having the object of their adoration with them, and they supposed they secured his presence by having that of his representative.

When all things are preparing for it, and it seems unavoidable:

that the priest shall approach and speak unto the people; not any priest, but one appointed for this service; who is called

the anointed of war, as Jarchi and Aben Ezra observe, and concerning whom Maimonides (d) is more particular; he says,"they appoint a priest to speak to the people at the time of war, and they anoint him with the anointing oil, and he is called the anointed of war; twice the anointed of war speaks unto the people, once in a book at the time they go forth, before they set in battle array, he says to the people, "what man is there", &c. and when he has caused his words to be heard, he returns; at another time, when they are set in array, he says, "fear not", &c.''this man seems to be an emblem of Gospel ministers, who are anointed with the gifts and graces of the Spirit of God, and whose business it is to encourage the people of God to fight the Lord's battles against sin, Satan, and the world, and not to be afraid of their spiritual enemies; directing them to take to them the whole armour of God, and to endure hardness as good soldiers of Christ, to follow him the captain of their salvation, assuring them of victory through him who makes them more than conquerors, and that their warfare is or shortly will be accomplished.

(d) Hilchot Melachim, c. 7. sect. 1, 2.

If they were thus drawing near to war, i.e., arranging themselves for war for the purpose of being mustered and marching in order into the battle (not just as the battle was commencing), the priest was to address the warriors, and infuse courage into them by pointing to the help of the Lord. "The priest" is not the high priest, but the priest who accompanied the army, like Phinehas in the war against the Midianites (Numbers 31:6; cf. 1 Samuel 4:4, 1 Samuel 4:11; 2 Chronicles 13:12), whom the Rabbins call המלחמה משׁיח (the anointed of the battle), and raise to the highest dignity next to the high priest, no doubt simply upon the ground of Numbers 31:6 (see Lundius, jd. Heiligth. p. 523).

And it shall be, when ye are come nigh unto the battle, that the priest shall approach and speak unto the people,

20:2 Speak unto the people - Probably to one regiment of the army after another.

2-4. when ye are come nigh unto the battle, that the priest shall approach and speak unto the people-Jewish writers say that there was a war priest appointed by a special ceremonial to attend the army. It was natural that the solemn objects and motives of religion should have been applied to animate patriotism, and so give additional impulse to valor; other people have done this. But in the case of Israel, the regular attendance of a priest on the battlefield was in accordance with their theocratic government, in which everything was done directly by God through His delegated ministers. It was the province of this priest to sound the trumpets (Nu 10:9; 31:6), and he had others under him who repeated at the head of each battalion the exhortations which he addressed to the warriors in general. The speech (De 20:3, 4) is marked by a brevity and expressiveness admirably suited to the occasion, namely, when the men were drawn up in line.

20:1-9 In the wars wherein Israel engaged according to the will of God, they might expect the Divine assistance. The Lord was to be their only confidence. In these respects they were types of the Christian's warfare. Those unwilling to fight, must be sent away. The unwillingness might arise from a man's outward condition. God would not be served by men forced against their will. Thy people shall be willing, Ps 110:3. In running the Christian race, and fighting the good fight of faith, we must lay aside all that would make us unwilling. If a man's unwillingness rose from weakness and fear, he had leave to return from the war. The reason here given is, lest his brethren's heart fail as well as his heart. We must take heed that we fear not with the fear of them that are afraid, Isa 8:12.