What does the Bible say about Psychics, Mediums, Fortune Tellers etc?
For my previous answer about mediums, please go to What Does the Bible Say About..Speaking With the Dead?
As that article indicates, God considered mediums to be an abomination. This is because a reliance on mediums indicates a lack of reliance on God. If one must try to contact the dead (as if they could tell us anything), then they are not trusting in God to direct their lives.
The same could be said of psychics and fortunetellers. These people can presumably tell what will happen in the future. But the future is God’s to know, and not for us to know. If God wanted us to know the future, he would have told us in the Bible. When he did send prophets, his message was generally to groups of people to bring them back to God. These true prophets of God rarely predicted specific futures for individuals, even more rarely prophesied on demand of an individual, and never for personal gain.
Another thing to consider is what God told the Jews through Moses. “But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die. And if thou say in thine heart, How shall we know the word which the LORD hath not spoken? When a prophet speaketh in the name of the LORD, if the thing follow not, nor come to pass, that is the thing which the LORD hath not spoken, but the prophet hath spoken it presumptuously: thou shalt not be afraid of him.” (Deuteronomy 18:20-22) If the psychic or fortuneteller is not speaking in God’s name, don’t listen to them. If they are speaking as if it is from God, then if they are wrong even once don’t listen to them.
If they deny God or say you should follow other Gods (and many are proponents of New Age polytheism), then you shouldn’t listen to them. “If there arise among you a prophet, or a dreamer of dreams, and giveth thee a sign or a wonder, And the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them; Thou shalt not hearken unto the words of that prophet, or that dreamer of dreams: for the LORD your God proveth you, to know whether ye love the LORD your God with all your heart and with all your soul. Ye shall walk after the LORD your God, and fear him, and keep his commandments, and obey his voice, and ye shall serve him, and cleave unto him. And that prophet, or that dreamer of dreams, shall be put to death; because he hath spoken to turn you away from the LORD your God” (Deuteronomy 13:1-5)
While these passages are from the law of Moses, the principle still applies today. Anyone who would seek out a psychic, fortuneteller, or medium is not trusting God. Anyone who claims to know the future had better be right 100% of the time, or they prove that they are liars. If they deny God or propose other gods they prove that they don’t know what they are talking about.