You are the salt of the earth, but if the salt becomes tasteless, how can you make it salty again? It's good for nothing, so it's thrown out and trodden down.
All of your grain offerings are to be seasoned with salt. Don't leave the salt of God's agreement out of your grain offering. Add salt to all of your offerings.
How much worse do you think someone will deserve their punishment if they have trampled underfoot the Son of God, if they have disregarded the blood that sealed the agreement and makes us holy, treating it as ordinary and trivial, and have abused the Spirit of grace?