2 Kings 17:28

Then[R.V. So] one of the priests whom they had carried away We can see from this that the events here spoken of took place within a very limited time. The priest who had been taken away from Samaria was still alive, and in vigour enough to be selected to go back again and to undertake the office of a teacher among the heathen colonists.

came and dwelt in Beth-el The place where one of the golden calves had been set up. The worship of these objects would be what the priest taught as the national worship of the ten tribes.

how they should fear the Lord For the worship of the ten tribes was professedly a worship of Jehovah, though performed in a manner contradictory to His express commandment.