Our Scripture reading today is Mark 9:50, "Salt is good: but if the salt have lost his saltness, wherewith will ye season it? Have salt in yourselves, and have peace one with another."
There are a couple benefits of salt that stand out in my mind when reading this verse.  Salt is preserving and cleansing.  Maybe you have experience the dreaded canker sore inside your mouth.  When I get one of these, I usually reach for the salt bottle and warm water.  If possible, I just apply the salt directly on the sore.  Yes, it stings, but it is also cleansing the area around the sore.  Not so much today, but salt can also be used as a preserving agent.  I guess there is still quite a bit of salt in canned goods.  Hence, their shelf life seems to be decades.  Not quite, but you get what I am saying.
Our life should have these same qualities in us.  When we do, it will enable us to have a lasting testimony on those whom we influence and even those we might come across just one time.  I am thinking of one way in particular that we can preserve and cleanse.  The words we speak are powerful.  It is important that we ask the Holy Spirit on a daily basis to guard our tongues that we might speak preserving and cleansing words.  Colossians 4:16, "Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man."