Bible Verses About soft words

There is that speaketh like the piercings of a sword: but the tongue of the wise is health.

A soft answer turneth away wrath: but grievous words stir up anger.

Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.

Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.

Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath: