Colossians 4:6

Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.
— Colossians 4:6, King James Version

In other translations

World English Bible (WEB)

Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.

American Standard Version (ASV)

Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer each one.

Young's Literal Translation (YLT)

your word always in grace--with salt being seasoned--to know how it behoveth you to answer each one.