Worship the Lord, 
and the Lord alone

False worship of things of the world, lead to the worship of false Gods

And Gideon made an ephod from them and put it up in his town Ophrah; and all Israel went after it there and were false to the Lord; and it became a cause of sin to Gideon and his house.
Judges 8:27

And after the death of Gideon, the children of Israel again went after the gods of Canaan and were false to the Lord, and made Baal-berith their god.
Judges 8:33