2 Corinthians 8:6

8:6 Thus we urged Titus that, just as he had previously begun this work, so also he should complete this act of kindness for you.

2 Corinthians 8:18

8:18 And we are sending along with him the brother who is praised by all the churches for his work in spreading the gospel.

2 Corinthians 10:16

10:16 so that we may preach the gospel in the regions that lie beyond you, and not boast of work already done in another person’s area.

2 Corinthians 11:27

11:27 in hard work and toil, through many sleepless nights, in hunger and thirst, many times without food, in cold and without enough clothing.