2 Chronicles 12:1

When the rule of Rehoboam was established and he was strong , he abandoned the law of the Lord , and all Israel with him.

After Rehoboam`s position as king was established and he had become strong, he and all Israel with him abandoned the law of the Lord.

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.