So, taking this verse, what do we do with the other verses where Paul boasts in other things:
you will come to understand fully that you can boast of us just as we will boast of you in the day of the Lord Jesus. -2 Cor. 1:14
If I must boast, I will boast of the things that show my weakness. -2 Cor. 11:30
we boast about your perseverance and faith -2 Thess. 1:4
So what do we do with this? Does Paul contradict himself? Not really. John Piper, theologian and pastor, discusses the subject:
"When Christ died, He purchased for sinners everything they enjoy that is not part of their condemnation. We are sinners all. All we deserve is damnation. The only thing that everyone deserves is damnation. That's all we deserve. Therefore, every beat of your heart, every sight with a wholesome eye, every word sung to the Lord, every movement of a strong arm, every step taken with healthy legs, every word heard with a healthy eardrum, every friend at your side, every word you can read, every joy that springs in your heart, it is a blood-bought gift which you would not have had He not died. Therefore, if you boast or glory in one of these things, it is, if you are thinking rightly, a glorying in and a boasting in the cross because He bought them for you on the cross. Let every legitimate pleasure and every pain that God turns for your good become an occasion for glorying in the cross by which they were purchased for you."