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

Most doctors prescribe a low sodium diet for good health.

https://www.healthline.com/nutrition/low-sodium-diet#benefits-of-low-sodium

God’s Word prescribes salt for a good life. What is salt up to in your life? Let your words be seasoned with salt. The hardest and toughest person can be hurt by harsh words. Let a person’s meanness be your pathway to helping them find peace and the love of Jesus. Be careful what you say to the unkind and unthinking.

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

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.
Mark 9:50

Ye are the salt of the earth: but if the salt have lost his savour, wherewith shall it be salted? it is thenceforth good for nothing, but to be cast out, and to be trodden under foot of men.
Matthew 5:13

19 And the men of the city said unto Elisha, Behold, I pray thee, the situation of this city is pleasant, as my lord seeth: but the water is naught, and the ground barren.

20 And he said, Bring me a new cruse, and put salt therein. And they brought it to him.

21 And he went forth unto the spring of the waters, and cast the salt in there, and said, Thus saith the LORD, I have healed these waters; there shall not be from thence any more death or barren land.

22 So the waters were healed unto this day, according to the saying of Elisha which he spake. 2 Kings 2:19-22