Matthew 5:13
"You are the salt of the earth. But if salt becomes tasteless, by what will it be made salty? It is good for nothing any longer except to be thrown outside [and] trampled under foot by people.
Leviticus 2:13
Also all of your grain offerings you must season with salt; you must not omit the salt of your God's covenant from your offering.
Luke 14:34-35
"Now salt [is] good, but if salt becomes tasteless, with what will it be made salty?
Colossians 4:6
Let your speech always [be] with grace, seasoned with salt, so that [you] may know how it is necessary for you to answer each one.
Mark 9:49-50
For everyone will be salted with fire.
Hebrews 6:4-6
For [it is] impossible [concerning] those who have once been enlightened, and have tasted the heavenly gift, and become sharers of the Holy Spirit,
2 Peter 2:20-21
For if, [after they] have escaped from the defilements of the world through the knowledge of the Lord and Savior Jesus Christ, and they are again entangled in these [things] [and] succumb to [them], the last [state] has become worse for them than the first.