2 Kings 17:32-33 KJV -  So they feared the LORD, and made unto themselves of the lowest of them priests of the high places, which sacrificed for them in the houses of the high places.  They feared the LORD, and served their own gods, after the manner of the nations whom they carried away from thence.
Sounds like today, doesn't it?
Let me set the table here. The period of time is that of the divided kingdom, many years past the days of King David. Israel had split into two; Israel and Judah. While Judah had an occasional good king, not one king of Israel was good. God warned the nations time and again that judgement was coming if they did not repent, and judgement came.
Israel was dispossessed and the people hauled off to Assyria. The Assyrian king resettled people from Babylon and other areas into Israel. God sent in lions to attack the people, and the leaders of the occupiers realized it was because they did not know the ways of the God of that land. They brought some priests back from captivity, to show the new inhabitants how to serve the LORD, but as expected, the priests were largely ignored and the foreigners did their own thing.
And as the scripture reads:
2 Kings 17:33 KJV -  They feared the LORD, and served their own gods, after the manner of the nations whom they carried away from thence.
So the thing is, these foreigners knew fully well that the nation of Israel had sinned against God, it was no secret. Knowing this, they were given the land which the people of Israel had possessed since Joshua and the people took it as their inheritance. And knowing the history of that land, the new inhabitants engaged in the very same idol worship, while simultaneously giving some token attention to the true and living God. They feared the LORD, but apparently, not that much.
And I ask you, are we any different today. This land on which we have our houses, was it originally our land? Do we fear the LORD while serving other idols? What separates us from those Babylonian settlers?