John was a genius. Paul talks in circles sometimes. I do admit I don’t always understand what he’s saying.
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Paul was accustomed to discourse with the well educated, and often said things that his sheep couldn’t wrap their heads around.
This is particularly true for modern ‘christians’ reading his epistle to the Galatians.
Very few understand that epistle, because they also don’t grasp Yeshua’s total denunciation of the Pharisees and scribes in Matthew 23.
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2 Peter 3:14-16
Therefore, beloved, since you look for these things, be diligent to be found by Him in peace, spotless and blameless,
and regard the patience of our Lord as salvation; just as also our beloved brother Paul, according to the wisdom given him, wrote to you,
as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction.
Peter wrote about this very thing:
"...in all his [Paul's] letters, speaking in them of these matters. His letters contain some things that are hard to understand, which ignorant and unstable people distort, as they do the other Scriptures, to their own destruction." - 2 Peter 3 (NIV)
Yet BOTH spoke as they were moved by the Holy Spirit. That same Holy Spirit is who will lead us into all truth. It is why we should study to show ourselves approved unto God as workmen that do not need to be ashamed but rightly dividing the word of truth.