"They feared the Lord, and served their own gods,"
2 Kings 17:33a (KJV)
So these nations feared the Lord, and served their graven images, both their children, and their children's children: as did their fathers, so do they unto this day.
2 Kings 17:41 (KJV)
Thou believest that there is one God; thou doest well: the devils also believe, and tremble.
But wilt thou know, O vain man, that faith without works is dead?
James 2:19-20 (KJV)