1 Corinthians 9:16

What I am proud of is not the mere preaching of the gospel; that I am constrained to do. Woe to me if I do not preach the gospel!

Romans 1:14

To Greeks and to barbarians, to wise and to foolish alike, I owe a duty.

Acts 9:15

But the Lord said to him, "Go; I have chosen him to be the means of bringing my Name before the Gentiles and their kings as well as before the sons of Israel.

Luke 9:62

Jesus said to him, "No one is any use to the Reign of God who puts his hand to the plough and then looks behind him."

Acts 4:20

Certainly we cannot give up speaking of what we have seen and heard."

Acts 9:6

Get up and go into the city. There you will be told what you have to do."

Acts 26:16-20

Now get up and stand on your feet, for I have appeared to you in order to appoint you to my service as a witness to what you have seen and to the visions you shall have of me.

Romans 4:2

This, that if 'Abraham was justified on the score of what he did,' he has something to be proud of. But not to be proud of before God.

Romans 15:17

Now in Christ Jesus I can be proud of my work for God.

Colossians 4:17

And tell Archippus, 'Attend to the ministry you have received in the Lord; see that you fulfil it.'

Treasury of Scripture Knowledge

Summary

For though I preach the gospel, I have nothing to glory of: for necessity is laid upon me; yea, woe is unto me, if I preach not the gospel!

General references

Bible References

I have

Romans 4:2
This, that if 'Abraham was justified on the score of what he did,' he has something to be proud of. But not to be proud of before God.
Romans 15:17
Now in Christ Jesus I can be proud of my work for God.

For

Acts 4:20
Certainly we cannot give up speaking of what we have seen and heard."
Acts 9:6
Get up and go into the city. There you will be told what you have to do."
Acts 26:16
Now get up and stand on your feet, for I have appeared to you in order to appoint you to my service as a witness to what you have seen and to the visions you shall have of me.
Romans 1:14
To Greeks and to barbarians, to wise and to foolish alike, I owe a duty.

General references

Luke 17:10
Well, it is the same with you; when you have done all you are bidden, say, 'We are but servants; we have only done our duty.' "