New Revised Standard Version
“Thus says the LORD, You shall not go up or fight against your kindred the people of Israel. Let everyone go home, for this thing is from me.” So they heeded the word of the LORD and went home again, according to the word of the LORD.

Contemporary English Version
"Don't go to war against the people from Israel--they are your relatives. Go home! I am the LORD, and I made these things happen." Rehoboam and his army obeyed the LORD and went home.

New American Bible
Thus says the LORD: You must not go out to war against your fellow Israelites. Return home, each of you, for it is I who have brought this about. They obeyed the word of the LORD and turned back, according to the word of the LORD.

Douay-Rheims Bible
Thus saith the Lord: You shall not go up, nor fight against your brethren, the children of Israel: let every man return to his house, for this thing is from me. They hearkened to the word of the Lord, and returned from their journey, as the Lord had commanded them.

Thus saith the Lord: You shall not go up, nor fight against your brethren, the children of Israel: let every man return to his house, for this thing is from me. They hearkened to the word of the Lord, and returned from their journey, as the Lord had commanded them.

Ye shall not go up

Numbers 14:42 Go not up, for the Lord is not with you: lest you fall before your enemies.

2 Chronicles 11:4 Thus saith the Lord: You shall not go up, nor fight against your brethren: let every man return to his own house, for by my will this thing has been done. And when they heard the word of the Lord, they returned, and did not go against Jeroboam,

2 Chronicles 25:7,8 But a man of God came to him, and said: O king, let not the army of Israel go out with thee, for the Lord is not with Israel, and all the children of Ephraim: . . .

2 Chronicles 28:9-13 At that time there was a prophet of the Lord there, whose name was Oded: and he went out to meet the army that came to Samaria, and said to them: Behold the Lord the God of your fathers being angry with Juda, hath delivered them into your hands, and you have butchered them cruelly, so that your cruelty hath reached up to heaven. . . .

for this thing

1 Kings 12:15 And the king condescended not to the people: for the Lord was turned away from him, to make good his word, which he had spoken in the hand of Ahias, the Silonite, to Jeroboam, the son of Nabat.

1 Kings 11:29-38 So it came to pass at that time, that Jeroboam went out of Jerusalem, and the prophet Ahias, the Silonite, clad with a new garment, found him in the way: and they two were alone in the field. . . .

Hosea 8:4 They have reigned, but not by me: they have been princes, and I knew not: of their silver and their gold they have made idols to themselves, that they might perish.

They hearkened

2 Chronicles 25:10 Then Amasias separated the army, that came to him out of Ephraim, to go home again: but they being much enraged against Juda, returned to their own country.

2 Chronicles 28:13-15 And they said to them: You shall not bring in the captives hither, lest we sin against the Lord. Why will you add to our sins, and heap up upon our former offences? for the sin is great, and the fierce anger of the Lord hangeth over Israel. . . .