The logical fallacy of superstitious thinking / magical thinking occurs when a belief does not follow from real evidence.
Roxanne: "Glory to God. I was suffering from rheumatoid arthritis, but I called for the elders of the Church. They laid hands on me, anointed me with oil, and prayed for me according to the order of James 5. Two people had a vision of the bone spurs dissolving. Within a few days, I could dress myself again. I went back to the doctor. He x-rayed me again and found that the bone spurs were gone. He couldn't understand it."
Sandra: "Ha! Ha! That is the logical fallacy of superstitious thinking."
Roxanne: "Perhaps you think that anything that you don't understand is a superstition?"
Sandra: "No. It's just that God is just a superstition, a belief based on nothing."
Roxanne: "Actually, the reason I know that God exists is because I personally know Jesus Christ, God. He leads me moment by moment and He is constantly teaching me. Not only that, but most of my friends have the same experience. Besides that, God reveals that those who refuse to acknowledge Him are without excuse because He has made His existence plain through the things that He has created."
Sandra: "That's superstitious thinking. Belief in God is like belief in the Easter Bunny."