Luke 14:34

The salt is good, but if the salt doth become tasteless, with what shall it be seasoned?

Matthew 5:13

'Ye are the salt of the land, but if the salt may lose savour, in what shall it be salted? for nothing is it good henceforth, except to be cast without, and to be trodden down by men.

Mark 9:49-50

for every one with fire shall be salted, and every sacrifice with salt shall be salted.

Colossians 4:6

your word always in grace -- with salt being seasoned -- to know how it behoveth you to answer each one.

Hebrews 2:4-8

God also bearing joint-witness both with signs and wonders, and manifold powers, and distributions of the Holy Spirit, according to His 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
'Ye are the salt of the land, but if the salt may lose savour, in what shall it be salted? for nothing is it good henceforth, except to be cast without, and to be trodden down by men.
Mark 9:49
for every one with fire shall be salted, and every sacrifice with salt shall be salted.
Colossians 4:6
your word always in grace -- with salt being seasoned -- to know how it behoveth you to answer each one.
Hebrews 2:4
God also bearing joint-witness both with signs and wonders, and manifold powers, and distributions of the Holy Spirit, according to His will.

General references

Ezekiel 15:3
Is wood taken from it to use for work? Do they take of it a pin to hang any vessel on it?