'Heathen' in the Bible

Instead he walked in the way of the [idolatrous] kings of Israel, and even made his son pass through the fire [as a human sacrifice], in accordance with the repulsive [and idolatrous] practices of the [pagan] nations whom the Lord drove out before the Israelites.

Now King Ahaz went to Damascus to meet Tiglath-pileser the king of Assyria, and saw the pagan altar which was at Damascus. Then King Ahaz sent a model of the altar to Urijah the priest along with a [detailed] pattern for all its construction.

and walked in the customs of the [pagan] nations whom the Lord had driven out before the sons (descendants) of Israel, and in the pagan customs of the kings of Israel which they had introduced.

They rejected His statutes and His covenant which He made with their fathers, as well as His warnings that he gave them. And they followed vanity [that is, false gods, idols] and became vain (empty-headed). They followed the [pagan practices of the] nations which surrounded them, although the Lord had commanded that they were not to do as they did.

He did [great] evil in the sight of the Lord, in accordance with the [idolatrous] repulsive acts of the [pagan] nations whom the Lord dispossessed before the sons (descendants) of Israel.

And he built [pagan] altars in the house (temple) of the Lord, of which the Lord had said, “In Jerusalem I will put My Name (Presence).”