The word translated good here is not human good, but spiritual. You have a good remembrance of us spiritually speaking. This shows the importance of a good relationship between the instrument being used by God to minister the word and those who are being ministered to. See that the bond of fellowship has not been broken. How did we conduct ourselves amongst you? We worked night and day and did not do anything to offend you. We were there for your sakes and you remember that. You remember how we sacrificed. You remember how we did not offend you. It is always the object of Satan, that if he cannot attack the message and show something wrong with the message he will attack the messenger.