Paul is referring to persecutions, and afflictions done *to* him. And the Lord delivered Paul in the sense that his life was saved and he didn't die/wasn't killed as a result of these persecutions. Paul's "thorn in the flesh" was something different. We don't know what specifically it was and it does no good to speculate, but most scholars agree it was some type of physical problem or ailment; at least that much seems clear. And Paul clearly says God did not remove the thorn in the flesh, but it remained.
I do not speculate on this, I use the words of Paul himself !
2 Corinthians 12:5 Of such a one will I glory: yet of myself I will not glory, but in mine infirmities.
Infirmities in context include "reproaches, in necessities, in persecutions, in distresses for Christ's sake. Paul failed to specify sickness. We are not sick for Christs sake that is false teaching in many church circles. If that were true Jesus spent a lot time undoing the will of God while He walked the earth.
6 For though I would desire to glory, I shall not be a fool; for I will say the truth: but now I forbear, lest any man should think of me above that which he seeth me to be, or that he heareth of me.
7 And 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.
One of the problems here Is the "phrase thorn in the flesh" it is nothing more than a saying like we might say so and so is a thorn in my side. Not a literal thorn from a bush in our literal side.
This was a messenger from satan not the flu.
Here is an example from scripture of this kind of language.
Numbers 33:55
But if ye will not drive out the inhabitants of the land from before you; then it shall come to pass, that those which ye let remain of them shall be pricks in your eyes, and thorns in your sides, and shall vex you in the land wherein ye dwell.
The phrase was just a saying not a literal statement. Lets compare scripture to scripture and not use private interpretation.
8 For this thing I besought the Lord thrice, that it might depart from me.
9 And 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.
Three points 1. The Lord did not say no, so called scholars inserted that. 2. Infirmities does not always mean sickness, so called scholars have assumed that. 3. The power of Christ rested upon Paul and I believe the previous scripture I posted says out of them ALL Paul was delivered. 2 Timothy 3:11
10 Therefore 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.
Only infirmities can even be stretched to mean sickness, but that is absolutely not clear from scripture in fact it is the opposite as we shall see.
2 Corinthians 11:23 Are they ministers of Christ? (I speak as a fool) I am more; in labours more abundant, in stripes above measure, in prisons more frequent, in deaths oft.
All things that affected Pauls physical being, no sickness listed.
24 Of the Jews five times received I forty stripes save one.
25 Thrice was I beaten with rods, once was I stoned, thrice I suffered shipwreck, a night and a day I have been in the deep;
26 In journeyings often, in perils of waters, in perils of robbers, in perils by mine own countrymen, in perils by the heathen, in perils in the city, in perils in the wilderness, in perils in the sea, in perils among false brethren;
27 In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.
More things that affected Pauls physical well being, but not sickness listed.
28 Beside those things that are without, that which cometh upon me daily, the care of all the churches.
29 Who is weak, and I am not weak? who is offended, and I burn not?
30 If I must needs glory, I will glory of the things which concern mine infirmities.
Paul is not glorying in sickness , all of these things he suffered for Christs sake and not one of them was sickness.
Lack of faith or sin is sometimes the reason for not being healed but clearly not always. Sometimes it's just not the will of God to heal; like with Paul's thorn in the flesh when it was more important to keep Paul's pride in check.
My response is not a healing disertation but one to correct what I believe to be error taught in many churches which causes wrong thinking about Gods willingness to heal His children.
One thing's for certain though: if one believer prays for healing for another believer to be healed and the person isn't, the pray-er should never accuse the pray-ee of lack of faith, because it could just as easily be the pray-er's lack of faith (!) ... or not God's will to begin with.
You are right we should pray for healing and sometimes we are healed and sometimes we are not and I do not have claim to have all of the answers as to why, nor would I ever berate or belittle one saying they didn't have faith because that is not for me to judge. Also what I would never do is tell someone that didn't get healed to not fill to bad Paul didn't get healed either because that is false doctrine and accomplishes nothing good for the body of Christ.
Paul clearly told us what his infirmities were and sickness was not listed among them.
FYI I am not buying the Paul had poor eyesight as his thorn.