Matthew 5:13
Ye are the salt of the earth; and if the salt may lose its savor, in what shall it be salted? It is yet without value, except having been cast out, to be trodden under feet by the people.
Luke 14:34-35
Therefore salt is good: but if the salt may lose its savor, with what shall it be salted?
Colossians 4:6
Let your word be always with grace, seasoned with salt, that you may know how it behooves you to answer each one.
Mark 9:49-50
For every one shall be salted with fire.
Hebrews 6:4-6
For it is impossible that those having been once enlightened, and tasted the heavenly gift, and have been made partakers of the Holy Ghost,
2 Peter 2:20-21
For if having escaped the pollutions of the world through the perfect knowledge of our Lord and Saviour Jesus Christ, and having again become entangled in these things, they are overcome, the last state has to them become worse than the first.