James 3:10-13

Out of the same mouth come both blessing and cursing. These things, my brothers, should not be this way [for we have a moral obligation to speak in a manner that reflects our fear of God and profound respect for His precepts]. Does a spring send out from the same opening both fresh and bitter water? Can a fig tree, my brothers, produce olives, or a grapevine produce figs? Nor can salt water produce fresh. Who among you is wise and intelligent? Let him by his good conduct show his [good] deeds with the gentleness and humility of true wisdom.