Luke 14:34
Salt, therefore, is good; but if even the salt become tasteless, with what shall it be seasoned?
Matthew 5:13
"Ye are the salt of the earth; but, if the salt become tasteless, with what shall it be salted? It is henceforth good for nothing, except, when cast without, to be trodden under foot by men.
Mark 9:49-50
For every one shall be salted with fire.
Colossians 4:6
Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer each one.
Hebrews 2:4-8
God testifying with them, both with signs and wonders and manifold miracles, and distributions of the Holy Spirit, according to His will?