They entered into a covenant to seek the LORD, the God of their ancestors, with all their heart and soul.
References for 2 Chronicles 15:12
All who would not seek the LORD, the God of Israel, were to be put to death, whether small or great, man or woman.
References for 2 Chronicles 15:13
They took an oath to the LORD with loud acclamation, with shouting and with trumpets and horns.