2 Kings 17:24-25, 27-28, 32-33

The king of Assyria brought in people from Babylon, Cuthah, Avva, Hamath, and Sepharvaim, and relocated them in the towns of Samaria, replacing the exiled Israelites. They moved in as if they owned the place and made themselves at home. When the Assyrians first moved in, GOD was just another god to them; they neither honored nor worshiped him. Then GOD sent lions among them and people were mauled and killed.

The king of Assyria ordered, “Send back some priests who were taken into exile from there. They can go back and live there and instruct the people in what the god of the land expects of them.” One of the priests who had been exiled from Samaria came back and moved into Bethel. He taught them how to honor and worship GOD.

They honored and worshiped GOD, but not exclusively—they also appointed all sorts of priests, regardless of qualification, to conduct a variety of rites at the local fertility shrines. They honored and worshiped GOD, but they also kept up their devotions to the old gods of the places they had come from.