Psalms 105:15 (NIV)
“Do not touch my anointed ones;
do my prophets no harm.”
This verse does not apply to people who give false prophesies. They are not prophets, they are false prophets. When you get it wrong and claim God told you, you didn’t “just miss it” you lied. In court if you claim someone said something to you and they never did, and it brings harm to them and their reputation, you can be sued for Liable. How much greater is the offense that your lies are against God!
“Something written or published that makes false or unfair statements that are likely to damage the reputation of a person or organization”: libel suit/lawsuit – definition from Cambridge English Dictionary
Church stop using this verse to defend these false prophets who hear from a lying spirit. God has not anointed them to tell lies, and they are not “His Prophets”.
Church when you use Psalms 105:15 to defend your favorite false prophet it shows your ignorance of scripture. God is against people who claim “The Lord Said” when He didn’t.
Isaiah 44:24-25 (NIV)
 “This is what the LORD says—
your Redeemer, who formed you in the womb:
I am the LORD,
who has made all things,
who alone stretched out the heavens,
who spread out the earth by myself,
 who foils the signs of false prophets
and makes fools of diviners,
Ezekiel 13:8-9 (NIV)
 “‘Therefore this is what the Sovereign LORD says: Because of your false words and lying visions, I am against you, declares the Sovereign LORD.  My hand will be against the prophets who see false visions and utter lying divinations. They will not belong to the council of my people or be listed in the records of the house of Israel, nor will they enter the land of Israel. Then you will know that I am the Sovereign LORD.