Luke 17:10

So also ye, when ye do all the things that were commanded you, say, 'We are unprofitable servants; we have done what it was our duty to do.'

Matthew 25:30

and cast out the unprofitable servant into the outer darkness: there will be the weeping, and the gnashing of teeth!

Romans 11:35

Or who first gave to Him, and it shall be given back to him again?

Matthew 25:37-40

"Then will the righteous answer Him, saying, 'Lord, when did we see Thee hungering, and fed Thee? or thirsting, and gave Thee drink?

Romans 3:12

they have all turned aside, they together became unprofitable; there is none that does good, there is not so much as one;

1 Corinthians 9:16-17

For, if I proclaim the Gospel, it is not to me a matter of boasting; for necessity is laid upon me; for woe is to me, if I proclaim not the Gospel.

1 Corinthians 15:9-10

For I am the least of the apostles, who am not fit to be called an apostle, because I persecuted the assembly of God.

Philippians 3:8-9

Nay, more, I even account all things to be loss for the excellency of the knowledge of Christ Jesus my Lord, for whose sake I suffered the loss of all things, and account them refuse, that I may gain Christ.

1 Peter 5:5-6

Likewise, ye younger, be subject to the elder; yea, all of you gird on the lowly mind to serve one another; because "God resisteth the proud, but giveth grace to the lowly."

Treasury of Scripture Knowledge

Summary

So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do.

Bible References

General references

Matthew 25:30
and cast out the unprofitable servant into the outer darkness: there will be the weeping, and the gnashing of teeth!
Romans 3:12
they have all turned aside, they together became unprofitable; there is none that does good, there is not so much as one;
Romans 11:35
Or who first gave to Him, and it shall be given back to him again?
1 Corinthians 9:16
For, if I proclaim the Gospel, it is not to me a matter of boasting; for necessity is laid upon me; for woe is to me, if I proclaim not the Gospel.
1 Corinthians 15:9
For I am the least of the apostles, who am not fit to be called an apostle, because I persecuted the assembly of God.
Philippians 3:8
Nay, more, I even account all things to be loss for the excellency of the knowledge of Christ Jesus my Lord, for whose sake I suffered the loss of all things, and account them refuse, that I may gain Christ.
Philemon 1:11
who at one time was unprofitable to you, but now profitable to you and to me;
1 Peter 5:5
Likewise, ye younger, be subject to the elder; yea, all of you gird on the lowly mind to serve one another; because "God resisteth the proud, but giveth grace to the lowly."