So they strengthened the kingdom of Judah, and made Rehoboam the son of Solomon strong for three years, because they walked in the way of David and Solomon for three years.
2 Chronicles 11:17
Surrounding context
11:16 And after the Levites left, those from all the tribes of Israel, such as set their heart to seek the LORD God of Israel, came to Jerusalem to sacrifice to the LORD God of their fathers.
11:17 So they strengthened the kingdom of Judah, and made Rehoboam the son of Solomon strong for three years, because they walked in the way of David and Solomon for three years.
11:18 Then Rehoboam took for himself as wife Mahalath the daughter of Jerimoth the son of David, and of Abihail the daughter of Eliah the son of Jesse.