NET
6 Let your speech always be gracious, seasoned with salt, so that you may know how you should answer everyone.
Darby
6 [Let] your word [be] always with grace, seasoned with salt, [so as] to know how ye ought to answer each one.
KJV
6 Let your speech [be] alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.