Mark 9:49-50

For every one shall be salted with fire, and every sacrifice shall be salted with salt.

Colossians 4:6

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

Matthew 5:13

Ye are the salt of the earth: but if the salt have lost its 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.

Treasury of Scripture Knowledge

Summary

And thou shalt offer them before the LORD, and the priests shall cast salt upon them, and they shall offer them up for a burnt offering unto the LORD.

Bible References

Cast salt

Matthew 5:13
Ye are the salt of the earth: but if the salt have lost its 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.
Mark 9:49
For every one shall be salted with fire, and every sacrifice shall be salted with salt.
Colossians 4:6
Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer every one.