New Revised Standard Version
All Israel shall mourn for him and bury him; for he alone of Jeroboam’s family shall come to the grave, because in him there is found something pleasing to the LORD, the God of Israel, in the house of Jeroboam.

Contemporary English Version
Everyone in Israel will mourn at his funeral. But he will be the last one from Jeroboam's family to receive a proper burial, because he's the only one the LORD God of Israel is pleased with.

New American Bible
and all Israel will mourn him and bury him, for he alone of Jeroboam’s line will be laid in the grave, since in him alone of Jeroboam’s house has something pleasing to the LORD, the God of Israel, been found.

Douay-Rheims Bible
And all Israel shall mourn for him, and shall bury him: for he only of Jeroboam shall be laid in a sepulchre, because in his regard there is found a good word from the Lord, the God of Israel, in the house of Jeroboam.

And all Israel shall mourn for him, and shall bury him: for he only of Jeroboam shall be laid in a sepulchre, because in his regard there is found a good word from the Lord, the God of Israel, in the house of Jeroboam.

shall mourn

Numbers 20:29 And Aaron being dead in the top of the mountain, he came down with Eleazar. And all the multitude seeing that Aaron was dead, mourned for him thirty days throughout all their families.

Jeremiah 22:10,18 Weep not for him that is dead, nor bemoan him with your tears: lament him that goeth away, for he shall return no more, nor see his native country. . . .

there is found

2 Chronicles 12:12 But yet because they were humbled, the wrath of the Lord turned away from them, and they were not utterly destroyed: for even in Juda there were found good works.

2 Chronicles 19:3 But good works are found in thee, because thou hast taken away the groves out of the land of Juda, and hast prepared thy heart to seek the Lord the God of thy fathers.

Job 19:28 Why then do you say now: Let us persecute him, and let us find occasion of word against him?

Ezekiel 18:14 But if he beget a son, who, seeing all his father's sins, which he hath done, is afraid, and shall not do the like to them:

Philemon 1:6 That the communication of thy faith may be made evident in the acknowledgment of every good work that is in you in Christ Jesus.

2 Peter 2:8,9 For in sight and hearing he was just, dwelling among them who from day to day vexed the just soul with unjust works. . . .