Points:
-- If someone tries to get you to worship a false god, do not go --- Deuteronomy 13:1-2
-- God proves you to know if you love him with all your heart and soul --- Deuteronomy 13:3
-- God proves you to know if you will walk after him, fear him, keep his commandments, obey his voice, serve him, and cleave to him --- Deuteronomy 13:4
-- Put evil away from you --- Deuteronomy 13:5
-- if a thing prophesied does not come true, that prophet has not spoken for God --- Deuteronomy 18:22
-- when the prophesy comes to pass, the Lord has sent that prophet --- Jeremiah 28:9
Commentary:
Know a false prophet by his prophecies that do not come true.
Do not be afraid of him, meaning to not pay attention to what he says because he is not speaking for God.
Example of a false prophet:
Jehovah's Witnesses have predicted many events that did not happen.