Col 4:6 

6 Let your speech always be gracious, seasoned with salt, so that you may know how to answer everyone.

Mark 9:50 Salt is good, but if the salt loses its saltiness, with what will you season it? Have salt among yourselves, and be at peace with one another.”

Eph 4:29 Let no unwholesome (corrput, like when a banna rots) talk come out of your mouths, but only what is helpful for building up the one in need and bringing grace to those who listen.

1 Pet 3

14 But even if you should suffer for righteousness’ sake, you will be blessed. Have no fear of them, nor be troubled, 15 but in your hearts honor Christ the Lord as holy, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet