Thou shalt have no other gods before me.
That is,
We should fear, love, and trust in God above all things.
19. What does the first commandment forbid?
It forbids the worship of strange gods, or idols.
Matt. 4:10. Thou shalt worship the Lord thy God, and him only shalt thou serve.
20. What is meant by an idol?
Anything that man worships, fears, loves, and trusts in instead of the one true God.
21. Who practice idolatry openly?