Bible Verses About false gods

Thou shalt have no other gods before me.

And in all things that I have said unto you be circumspect: and make no mention of the name of other gods, neither let it be heard out of thy mouth.

Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.

Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.