Luke 14:34

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

Matthew 5:13

"You are the salt of the earth, but if the salt has lost its flavor, with what will it be salted? It is then good for nothing, but to be cast out and trodden under the feet of men.

Mark 9:49-50

For everyone will be salted with fire, and every sacrifice will be seasoned with salt.

Colossians 4:6

Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.

Hebrews 2:4-8

God also testifying with them, both by signs and wonders, by various works of power, and by gifts of the Holy Spirit, according to his own will?

Treasury of Scripture Knowledge

Summary

Salt is good: but if the salt have lost his savour, wherewith shall it be seasoned?

General references

Bible References

But

Matthew 5:13
"You are the salt of the earth, but if the salt has lost its flavor, with what will it be salted? It is then good for nothing, but to be cast out and trodden under the feet of men.
Mark 9:49
For everyone will be salted with fire, and every sacrifice will be seasoned with salt.
Colossians 4:6
Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.
Hebrews 2:4
God also testifying with them, both by signs and wonders, by various works of power, and by gifts of the Holy Spirit, according to his own will?

General references

Ezekiel 15:3
Shall wood be taken of it to make any work? or will men take a pin of it to hang any vessel thereon?