thorn
It has been conjectured that Paul's "thorn in the flesh" was chronic ophthalmia, inducing bodily weakness, and a repulsive appearance (Galatians 4:15); (1 Corinthians 2:3); (1 Corinthians 2:4); (2 Corinthians 10:10). This cannot be positively known, and the reserve of Scripture is as sure a mark of inspiration as its revelations. Paul's particular "thorn" is not described that his consolations may avail for all to who any thorn is given.