Colossians 4:5,6

Walk in wisdom toward them that are without Your heathen neighbours; doing nothing to disgrace religion in their eyes, or unnecessarily to exasperate them against you; redeeming the time Embracing and improving every opportunity of doing good, and particularly of gaining souls to Christ. Let your speech be alway with grace Such as may manifest that the grace of God is in you, and may be calculated to win upon, instruct, and edify others; seasoned with salt With wisdom and grace, as flesh is with salt, so that it may be savoury and useful to the hearers, tending to prevent or cure their corrupt principles or practices; that ye may know how ye ought to answer every man May be able to speak pertinently and wisely upon all occasions, and especially when questioned about the grounds of your religion.