Luke 14:34-35

salt is good, but if the salt has lost its savour, with what shall it be recovered?

Romans 3:12

they are all gone out of the way, they are together become unprofitable, there is none that doth good, no not one.

Treasury of Scripture Knowledge

Summary

Then I went to Euphrates, and digged, and took the girdle from the place where I had hid it: and, behold, the girdle was marred, it was profitable for nothing.

Bible References

It was

Luke 14:34
salt is good, but if the salt has lost its savour, with what shall it be recovered?
Romans 3:12
they are all gone out of the way, they are together become unprofitable, there is none that doth good, no not one.
Philemon 1:11
'tis true he was formerly useless to you, but now he will be useful to us both: