Chronicles II 12:1

1 And it came to pass when the kingdom of Roboam was established, and when he had grown strong, he forsook the commandments of the Lord, and all Israel with him.

Chronicles II 12:1 Meaning and Commentary

2 Chronicles 12:1

And it came to pass, when Rehoboam had established the kingdom,
&c.] 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 11:5-12 ) , 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 14:22-24 ) .

Chronicles II 12:1 In-Context

1 And it came to pass when the kingdom of Roboam was established, and when he had grown strong, he forsook the commandments of the Lord, and all Israel with him.
2 And it came to pass in the fifth year of the reign of Roboam, Susakim king of Egypt came up against Jerusalem, because they had sinned against the Lord,
3 with twelve hundred chariots, and sixty thousand horses: and there was no number of the multitude that came with him from Egypt; Libyans, Trogodytes, and Ethiopians.
4 And they obtained possession of the strong cities, which were in Juda, and came to Jerusalem.
5 And Samaias the prophet came to Roboam, and to the princes of Juda that were gathered to Jerusalem for fear of Susakim, and said to them, Thus said the Lord, Ye have left me, and I will leave you in the hand of Susakim.

The Brenton translation of the Septuagint is in the public domain.