He had much business in the cities - He kept the people constantly employed; they had wages for their work; and by their labors the empire was both enriched and strengthened.

And he had much business in the cities of Judah,.... Partly in fortifying them, and partly in reforming the inhabitants of them:

and the men of war, mighty men of valour, were in Jerusalem; or by or near unto it, so the particle is rendered, Joshua 5:13, they encamped in places adjacent to it; for such a number of men as follows, even 1,160,000, could never be contained in Jerusalem, but must be disposed of in the territories of it; nor did they wait on the king together; but in course, see 2 Chronicles 17:19, by which it appears there is no need to suppose any mistake of the transcriber, in any or all of the following sums, as has been suggested (q).

(q) See Maitland's History of London, B. 3. ch. 2. p. 543.

וגו רבּה וּמלעכה is rightly translated by Luther, "und hatte viel Vorraths" (and had much store). מלעכה denotes here, as in Exodus 22:7-10, property, that which has been gained by work or business. The signification, much work, opera magna (Vulg., Cler., etc.), as also Bertheau's translation, "the works for equipping and provisioning the fortresses," correspond neither to the context nor to the parallel (synonymous) second member of the verse. The work and trouble necessary to equip the cities of Judah does not correspond to "the valiant warriors in Jerusalem;" the only parallel is the goods and property which were in these cities, the provision of victuals and war material there stored up.

And he had much business in the cities of Judah: and the men of war, mighty men of valor, were in Jerusalem.

17:13 Business - To repair and fortify them, and furnish them with provisions: and to purge out all their relicks of idolatry and injustice.

17:1-19 Jehoshaphat promotes religion in Judah, His prosperity. - Jehoshaphat found his people generally very ignorant, and therefore endeavoured to have them well taught. The public teaching of the word of God forms, in all ages, the great method of promoting the power of godliness. Thereby the understanding is informed, the conscience is awakened and directed. We have a particular account of Jehoshaphat's prosperity. But it was not his formidable army that restrained the neighbouring nations from attempting any thing against Israel, but the fear of God which fell upon them, when Jehoshaphat reformed his country, and set up a preaching ministry in it. The ordinances of God are more the strength and safety of a kingdom, than soldiers and weapons of war. The Bible requires use to notice the hand of God in every event, yet this is little regarded. But let all employ the talents they have: be faithful, even in that which is little. Set up the worship of God in your houses. The charge of a family is important. Why should you not instruct them as Jehoshaphat did his subjects, in the book of the law of the Lord. But be consistent. Do not recommend one thing, and practise another. Begin with yourselves. Seek to the Lord God of Israel, then call upon children and servants to follow your example.