This is just a red herring. Both Jesus and Paul taught that we need to repent i.e. turn from sin and follow Jesus. So what's the problem?
If it was Christ who puts His words on Paul's tongue who do you think we should believe by coming under the authority of it.
is there any word in scripture that is not God moved or are the scriptures not an interpreation of men like Paul.
Who did Balaam believe according to spiritual words of eternal life? His Ass or the Holy Spirit who opened the mouth ?
Asses in the scriptures are used to represent the unsaved in need of redemption .God is not served by human hands/will as if He needed anything from the creature .
Num 22:28 And the LORD opened the mouth of the ass, and she said unto Balaam, What have I done unto thee, that thou hast smitten me these three times?
The same could apply to Jeremiah or any prophet that declares the word of God and not that of their own selves.
Jer 1:9 Then the LORD put forth his hand, and touched my mouth. And the LORD said unto me, Behold, I have put my words in thy mouth.
He put the words that he put into Paul's mouth into the ear of those who heard and believed God, converting their hearts and minds.He does perform all those things he appointed to us moving us by a work of His faith to believe what he has said.
Act 17:11 These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.