And it came to pass, when Rehoboam had established the kingdom, and had strengthened himself, he forsook the law of the LORD, and all Israel with him.

And when the kingdom of Roboam was strengthened and fortified, he forsook the law of the Lord, and all Israel with him.

And it came to pass when the kingdom of Rehoboam was established, and when he had become strong, that he forsook the law of Jehovah, and all Israel with him.

And it cometh to pass, at the establishing of the kingdom of Rehoboam, and at his strengthening himself, he hath forsaken the law of Jehovah, and all Israel with him.

Now when Rehoboam's position as king had been made certain, and he was strong, he gave up the law of the Lord, and all Israel with him.

And when the kingdom of Rehoboam had been strengthened and fortified, he abandoned the law of the Lord, and all of Israel with him.

All Israel with him - i. e., "all Judah and Benjamin" - all the Israelites of those two tribes.

He forsook the law of the Lord - This was after the three years mentioned 2-Chronicles 11:17.

And it came to pass, when Rehoboam had established the kingdom, and had strengthened himself, he forsook the law of the LORD, and (a) all Israel with him.
(a) For such is the inconstancy of the people, that for the most part they follow the vices of their governors.

And it came to pass, when Rehoboam had established the kingdom,.... Or when the kingdom of Rehoboam was established; the tribes of Judah and Benjamin being firmly attached to him, and great numbers from the other tribes coming over to him, and things going on peaceably and prosperously during the three years that he and his people abode by the pure worship of God:
and had strengthened himself; built fortified cities for the defence of himself and kingdom, 2-Chronicles 11:5, he forsook the law of the Lord; after he had reigned three years, and was become strong, and thought himself safe and secure on the throne, trusting to his strength:
and all Israel with him; the greater part of them following the example of their king; of this defection, and the sins they fell into, see 1-Kings 14:22.

When Rehoboam was so strong that he supposed he had nothing to fear from Jeroboam, he cast off his outward profession of godliness. It is very common, but very lamentable, that men, who in distress or danger, or near death, seem much engaged in seeking and serving God, throw aside all their religion when they have received a merciful deliverance. God quickly brought troubles upon Judah, to awaken the people to repentance, before their hearts were hardened. Thus it becomes us, when we are under the rebukes of Providence, to justify God, and to judge ourselves. If we have humbled hearts under humbling providences, the affliction has done its work; it shall be removed, or the property of it be altered. The more God's service is compared with other services, the more reasonable and easy it will appear. Are the laws of temperance thought hard? The effects of intemperance will be found much harder. The service of God is perfect liberty; the service of our lusts is complete slavery. Rehoboam was never rightly fixed in his religion. He never quite cast off God; yet he engaged not his heart to seek the Lord. See what his fault was; he did not serve the Lord, because he did not seek the Lord. He did not pray, as Solomon, for wisdom and grace; he did not consult the word of God, did not seek to that as his oracle, nor follow its directions. He made nothing of his religion, because he did not set his heart to it, nor ever came up to a steady resolution in it. He did evil, because he never was determined for good.

REHOBOAM, FORSAKING GOD, IS PUNISHED BY SHISHAK. (2-Chronicles 12:1-12)
when Rehoboam had established the kingdom, and had strengthened himself--(See on 2-Chronicles 11:17). During the first three years of his reign his royal influence was exerted in the encouragement of the true religion. Security and ease led to religious decline, which, in the fourth year, ended in open apostasy. The example of the court was speedily followed by his subjects, for "all Israel was with him," that is, the people in his own kingdom. The very next year, the fifth of his reign, punishment was inflicted by the invasion of Shishak.

Rehoboam's defection from the Lord, and his humiliation by the Egyptian king Shishak. - 2-Chronicles 12:1. The infinitive כּהכין, "at the time of the establishing," with an indefinite subject, may be expressed in English by the passive: when Rehoboam's royal power was established. The words refer back to 2-Chronicles 11:17. כּחזקתו, "when he had become strong" (חזקה is a nomen verbale: the becoming strong; cf. 2-Chronicles 26:16; 2-Chronicles 11:2), he forsook the Lord, and all Israel with him. The inhabitants of the kingdom of Judah are here called Israel, to hint at the contrast between the actual conduct of the people in their defection from the Lord, and the destiny of Israel, the people of God. The forsaking of the law of Jahve is in substance the fall into idolatry, as we find it stated more definitely in 1-Kings 14:22.

And all Israel - So called, because they forsook God, as Israel had done.