What does 2 Chronicles 11:17 mean?

These people strengthened the kingdom of Judah and supported Rehoboam, Solomon's son, for three years, because during that time they followed the ways of David and Solomon. 2 Chronicles 11:17 - Modern Text Bible

(For a while, Judah is spiritually strong, with people committed to God and supporting Rehoboam, as long as he sticks to the old ways.)