Jehoshaphat returned to his house in peace - With the battle of Ramoth-Gilead, and the death of Ahab, the war came to an end. The combined attack of the two kings having failed, their troops had been withdrawn, and the enterprise in which they had joined relinquished. The Syrians, satisfied with their victory, did not press on the retreating foe, or carry the war into their enemies' country.

Returned to his house in peace - That is, in safety, notwithstanding he had been exposed to a danger so imminent, from which only the especial mercy of God could have saved him.

And Jehoshaphat the king of Judah returned,.... From Ramothgilead, after Ahab was slain:
to his house in peace in Jerusalem; to his palace there in safety, having narrowly escaped losing his life in the battle.

Whenever we return in peace to our houses, we ought to acknowledge God's providence in preserving our going out and coming in. And if we have been kept through more than common dangers, we are, in a special manner, bound to be thankful. Distinguishing mercies lay us under strong obligations. The prophet tells Jehoshaphat he had done very ill in joining Ahab. He took the reproof well. See the effect the reproof had upon him. He strictly searched his own kingdom. By what the prophet said, Jehoshaphat perceived that his former attempts for reformation were well-pleasing to God; therefore he did what was then left undone. It is good when commendations quicken us to our duty. There are diversities of gifts and operations, but all from the same Spirit, and for the public good; and as every one has received the gift, so let him minister the same. Blessed be God for magistrates and ministers, scribes and statesmen, men of books, and men of business. Observe the charge the king gave. They must do all in the fear of the Lord, with a perfect, upright heart. And they must make it their constant care to prevent sin, as an offence to God, and what would bring wrath on the people.

JEHOSHAPHAT VISITS HIS KINGDOM. (2-Chronicles 19:1-4)
Jehoshaphat . . . returned to his house in peace--(See 2-Chronicles 18:16). Not long after he had resumed the ordinary functions of royalty in Jerusalem, he was one day disturbed by an unexpected and ominous visit from a prophet of the Lord [2-Chronicles 19:2]. This was Jehu, of whose father we read in 2-Chronicles 16:7. He himself had been called to discharge the prophetic office in Israel. But probably for his bold rebuke to Baasha (1-Kings 16:1), he had been driven by that arbitrary monarch within the territory of Judah, where we now find him with the privileged license of his order, taking the same religious supervision of Jehoshaphat's proceedings as he had formerly done of Baasha's. At the interview here described, he condemned, in the strongest terms, the king of Judah's imprudent and incongruous league with Ahab--God's open enemy (1-Kings 22:2) --as an unholy alliance that would be conducive neither to the honor and comfort of his house nor to the best interests of his kingdom. He apprised Jehoshaphat that, on account of that grave offense, "wrath was upon him from before the Lord," a judgment that was inflicted soon after (see on 2Ch. 20:1-37). The prophet's rebuke, however, was administered in a mingled strain of severity and mildness; for he interposed "a nevertheless" (2-Chronicles 19:3), which implied that the threatened storm would be averted, in token of the divine approval of his public efforts for the promotion of the true religion, as well as of the sincere piety of his personal character and life.

The prophet Jehu's declaration as to Jehoshaphat's alliance with Ahab, and Jehoshaphat's further efforts to promote the fear of God and the administration of justice in Judah. - 2-Chronicles 19:1-3. Jehu's declaration. Jehoshaphat returned from the war in which Ahab had lost his life, בּשׁלום, i.e., safe, uninjured, to his house in Jerusalem; so that the promise of Micah in 2-Chronicles 18:16 was fulfilled also as regards him. But on his return, the seer Jehu, the son of Hanani, who had been thrown into the stocks by Asa (2-Chronicles 16:7.), met him with the reproving word, "Should one help the wicked, and lovest thou the haters of Jahve!" (the inf. with ל, as in 1-Chronicles 5:1; 1-Chronicles 9:25, etc.). Of these sins Jehoshaphat had been guilty. "And therefore is anger from Jahve upon thee" (על קצף as in 1-Chronicles 27:24). Jehoshaphat had already had experience of this wrath, when in the battle of Ramoth the enemy pressed upon him (2-Chronicles 18:31), and was at a later time to have still further experience of it, partly during his own life, when the enemy invaded his land (2 Chron 20), and when he attempted to re-establish the sea trade with Ophir (2-Chronicles 20:35.), partly after his death in his family (2 Chron 21 and 2-Chronicles 22:1-12). "But," continues Jehu, to console him, "yet there are good things found in thee (cf. 2-Chronicles 12:12), for thou hast destroyed the Asheroth..." אשׁרות = אשׁרים, 2-Chronicles 17:6. On these last words, comp. 2-Chronicles 12:14 and 2-Chronicles 17:4.