M'lakhim Bet (2 Ki) 18:5-7

He put his trust in ADONAI the God of Isra’el; after him there was no one like him among all the kings of Y’hudah, nor had there been among those before him. For he clung to ADONAI and did not leave off following him, but obeyed his mitzvot, which ADONAI had given Moshe. So ADONAI was with him. Wherever he went out to battle, he did well. He rebelled against the king of Ashur and refused to be his vassal.