What was Paul's thorn in the flesh as he claimed he was plagued with in 2 Cor 12:8 and "besought the Lord thrice" (3 times) to rid him of it?
Some say (erroneously), it was an affliction of some kind. However, when you look carefully at the text, it's clear to see it was not a bodily disorder or disease, nor would such warrant the Lord's grace as stated in 2 Cor 12:9.
The answer as to what it was lies in Paul's letter to the church at Rome, Rom 7:8: The fleshly lust of 'concupiscence'.
What is 'concupiscence'?
Strong sexual desire; lust. The desire and enjoyment of carnal pleasure.
"Strong desire, especially sexual desire" (Webster)
(see both pertinent texts below, KJV)
2 Cor 12:7-10
"
7And lest I should be exalted above measure through the abundance of the revelations, there was given to me a thorn in the flesh, the messenger of Satan to buffet me, lest I should be exalted above measure.
8For this thing I besought the Lord thrice, that it might depart from me.
9And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.
10Therefore I take pleasure in infirmities, in reproaches, in necessities, in persecutions, in distresses for Christ's sake: for when I am weak, then am I strong."
Romans 7:7-11
"
7What shall we say then?
Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet.
8But sin, taking occasion by the commandment, wrought in me all manner of concupiscence. For without the law sin
was dead.
9For I was alive without the law once: but when the commandment came, sin revived, and I died.
10And the commandment, which
was ordained to life, I found
to be unto death.
11For sin, taking occasion by the commandment, deceived me, and by it slew
me.