Let no unwholesome word proceed from your mouth, but only such a word as is good for edification according to the need of the moment, so that it will give grace to those who hear.
Ephesians 4:29 (NASB)
Self-denial
Now we who are strong ought to bear the weaknesses of those without strength and not just please ourselves.
Each of us is to please his neighbor for his good, to his edification.
Romans 15:1-2 (NASB)