2 Corinthians 12:19
Again, think ye that we excuse ourselves unto you? we speak before God in Christ: but we do all things, dearly beloved, for your edifying. Again, think ye that we excuse ourselves unto you? we speak before God in Christ: but we do all things, dearly beloved, for your edifying.
Paul was not excusing himself to the believers, but speaking before God in Christ. Everything he did in word and action toward them was for their spiritual upbuilding, with his work among them aimed at building them up. Such edifying labor means working self-denyingly to strengthen Christian character, rather than merely pleasing or stimulating people.