I would like to explore more why you think whatever spirt you believe is true, that you do not believe in other spirits, yet you plainly do believe in other spirits because you think they are trying to deceive/trick you.
And this is on subject, because mediums say they use spirits.
Have you thought about this line in the Lords prayer ?
Mat 6:13 And lead us not into temptation, but deliver us from evil: For thine is the kingdom, and the power, and the glory, for ever. Amen. (KJV)
See there, it is supposed to be a God you are asking not to tempt you into evil. Logically then, it is this God that is doing the tempting to do evil?
But that is the King James Version. The Litteral standard version says this -
Mat 6:13 And may You not lead us into temptation, but deliver us from the evil [one], because Yours is the kingdom, and the power, and the glory--for all ages. Amen. (LSV)
That is a bit different. This time it is say may you not tempt us, but keep us from the evil one. See the difference there. The fist is implying that this God is the source of evil. The second now has an evil one ?
What one is it. One God doing all, or a God and an evil one ?
It matters on this thread, because it has been suggested that mediums and Tarot folk are under the control of this evil one.