Phinehas had the charge not of the army, as general, (an office never committed to any priest in all the Old Testament,) but of the holy instruments, & c. as is here expressed, and was also sent to encourage, and quicken, and confirm them in their good enterprise. It is not here mentioned who was the general, whether Joshua, as some think, because he is not named amongst those who went out to meet the returning host, though that might be for other reasons, or some other prince, nor is it worth while to determine. The holy instruments; either,
1. The ark, with the things belonging to it, which before the building of the temple they did sometimes carry into the war for the encouragement of their army. See Numbers 14:44 Joshua 6:9 1 Samuel 4:4, 1 Samuel 14:18. But why then is it thus ambiguously expressed, seeing in all the other places it is called by its proper name? Nor is the ark ever so called in Scripture. Or,
2. The trumpets, as it here follows, the words being thus to be read, the holy instruments that is, the trumpets; for and is ofttimes put exegetically for that is, or to wit, as Genesis 13:15 1 Chronicles 21:12, compared with 2 Samuel 24:13 Malachi 1:4, Malachi 9:9, &c. Or rather,
3. The holy breastplate, wherein was the Urim and Thummim, which was easily carried and used, and very useful in war upon many emergent occasions. See 1 Samuel 23:9, 1 Samuel 30:7. And the trumpets, which were to be used in war as well as in the service of the tabernacle. See Numbers 10:9 2 Chronicles 13:12.