And he sent to Josaphat king of Juda, saying: The king of Moab is revolted from me, come with me against him to battle. And he answered: I will come up: he that is mine, is thine: my people, thy people: and my horses, thy horses.

and goeth and sendeth unto Jehoshaphat king of Judah, saying, 'The king of Moab hath transgressed against me; dost thou go with me unto Moab for battle?' and he saith, 'I go up, as I, so thou; as my people, so thy people; as my horses, so thy horses.

And he sent to Jehoshaphat, king of Judah, saying, The king of Moab has got free from my authority: will you go with me to make war on Moab? And he said, I will go with you: I am as you are, my people as your people, and my horses as your horses.

And he sent to Jehoshaphat, the king of Judah, saying: "The king of Moab has withdrawn from me. Come to battle with me against him." And he responded: "I will go up. What is mine, is yours. My people are your people. And my horses are your horses."

The close alliance between the two kingdoms still subsisted. Jehoram therefore sends confidently to make the same request with respect to Moab that his father had made two years before with respect to Syria (marginal reference). Jehoshaphat consented at once, notwithstanding that his former compliance had drawn upon him the rebuke of a prophet 2-Chronicles 19:2. Perhaps Jehoram's removal of the Baal-worship 2-Kings 3:2 weighed with him. He had himself been attacked by the Moabites in the preceding year; and though the attempt had failed, Jehoshaphat would feel that it might be renewed, and that it was important to seize the opportunity of weakening his enemy which now offered itself.

My people as thy people - We find that Jehoshaphat maintained the same friendly intercourse with the son, as he did with the father. See 1-Kings 22:4.

And he went and sent to Jehoshaphat the king of Judah, saying, The king of Moab hath rebelled against me: wilt thou go with me against Moab to battle? And he said, I will go up: (d) I [am] as thou [art], my people as thy people, [and] my horses as thy horses.
(d) Read (1-Kings 22:4).

And he went and sent to Jehoshaphat the king of Judah, saying, the king of Moab hath rebelled against me,.... By refusing to pay him tribute:
wilt thou go up with me against Moab to battle? and he said, I will go up; which he agreed to, partly to encourage in the reformation of religion which he had begun, and partly to chastise the Moabites for their invasion of his country, 2-Chronicles 20:1.
I am as thou art, my people as thy people, and my horses as thy horses; the same answer he returned to Ahab; see Gill on 1-Kings 22:4.

He said - He joins with him in this war; because the war was just in itself, and convenient for Jehoshaphat, both in the general, that revolters should be chastised: lest the examples should pass into his dominions, and the Edomites be encouraged to revolt from him, as they did from his son; and in particular, that the Moabites should be humbled, who had invaded his land before this time, 2-Chronicles 20:1, and might do so again if they were not brought low; for which a fair opportunity now offered.