Idolatry: Consists in Serving Other Gods
Source: TTT
Deuteronomy 7:4
because they will turn your sons away from following Me to serve other gods. Then the anger of the LORD will burn against you, and He will swiftly destroy you.
Jeremiah 5:19
And when the people ask, ‘For what offense has the LORD our God done all these things to us?’ You are to tell them, ‘Just as you have forsaken Me and served foreign gods in your land, so will you serve foreigners in a land that is not your own.’”