If I must needs glory, I will glory of the things which concern mine infirmities.
Glory of ... infirmities. A striking contrast! Glorying in, not power, riches, eloquence, but what others make matter of shame-namely, infirmities; for instance, his humbling escape in a basket (2 Corinthians 11:33), imprisonment, etc.-a character incompatible with an enthusiast (cf. 2 Corinthians 12:5; 2 Corinthians 12:9-10).