Matthew 5:13
"*You* are the salt of the earth; but if salt has become tasteless, in what way can it regain its saltness? It is no longer good for anything but to be thrown away and trodden on by the passers by.
Luke 14:34-35
"Salt is good: but if even the salt has become tasteless, what will you use to season it?
Colossians 4:6
Let your language be always seasoned with the salt of grace, so that you may know how to give every man a fitting answer.
Mark 9:49-50
Every one, however, will be salted with fire.
Hebrews 6:4-6
For it is impossible, in the case of those who have once for all been enlightened, and have tasted the sweetness of the heavenly gift, and have been made partakers of the Holy Spirit,
2 Peter 2:20-21
For if, after escaping from the pollutions of the world through a full knowledge of our Lord and Saviour Jesus Christ, people are once more entangled in these pollutions and are overcome, their last state has become worse than their first.