And taught. — And was teaching, implying a permanent work.
In Bethel. — Because he was a priest of the calfworship.
Fear the Lord. — Not in the modern ethical but in the ancient ceremonial sense.
Related Commentaries of 2 Kings 17:28
2 Kings 17:28
28 Then one of the priests whom they had carried away from Samaria came and dwelt in Bethel, and taught them how they should fear the LORD.