Matthew 5:13
Ye are the salt of the earth; but if the salt have become insipid, wherewith shall it be salted? It is no longer fit for anything but to be cast out and to be trodden under foot by men.
Leviticus 2:13
And every offering of thine oblation shalt thou season with salt; neither shalt thou suffer the salt of the covenant of thy God to be lacking from thine oblation: with all thine offerings thou shalt offer salt.
Luke 14:34-35
Salt then is good, but if the salt also has become savourless, wherewith shall it be seasoned?
Colossians 4:6
Let your word be always with grace, seasoned with salt, so as to know how ye ought to answer each one.
Mark 9:49-50
For every one shall be salted with fire, and every sacrifice shall be salted with salt.
Hebrews 6:4-6
For it is impossible to renew again to repentance those once enlightened, and who have tasted of the heavenly gift, and have been made partakers of the Holy Spirit,
2 Peter 2:20-21
For if after having escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, again entangled, they are subdued by these, their last state is worse than the first.