the salt
Leviticus 2:13
And every oblation of thy meat offering shalt thou season with salt; neither shalt thou suffer the salt of the covenant of thy God to be lacking from thy meat offering: with all thine offerings thou shalt offer salt.
Colossians 4:6
Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.
if
Mark 9:49
For every one shall be salted with fire, and every sacrifice shall be salted with salt.
Mark 9:50
Salt is good: but if the salt have lost his saltness, wherewith will ye season it? Have salt in yourselves, and have peace one with another.
Luke 14:34
Salt is good: but if the salt have lost his savour, wherewith shall it be seasoned?
Luke 14:35
It is neither fit for the land, nor yet for the dunghill; but men cast it out. He that hath ears to hear, let him hear.
Hebrews 6:4-6
4
For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
5
And have tasted the good word of God, and the powers of the world to come,
6
If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame.
2 Peter 2:20
For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.
2 Peter 2:21
For it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them.