The problem stems from understanding. No logical mind can rightly divide the truth of God.
That is not what the Scripture says or teaches. Indeed, no one without a rational and logical mind can rightly divide the Word of truth. The problem is not with LOGICAL thinking but with the SPIRITUAL condition of the mind which is at "enmity" with God. The failure to perceive or understand is not a problem with logic or rationality but a SPIRITUAL problem having to do with enmity and resistance. The lenses of hate ("enmity" - Rom. 8:7) provide only a distorted view.
The SPIRITUAL condition of man is one of "enmity" and love of darkness rather than light and it is through these mentally affected lenses that they attempt to perceive and understand God's Word.
So the statment "God is not the author of confusion" is not something for a rational mind or something that cannot be rationally understand?!?
God has a logical mind and everything He created reveals that. His capability is simply on a higher level (Isa. 55).