1 Corinthians 3:15

3:15 If someone’s work is burned up, he will suffer loss. ¹  He himself will be saved, but only as through fire.

1 Corinthians 4:12

4:12 We do hard work, toiling with our own hands. When we are verbally abused, we respond with a blessing, when persecuted, we endure,

1 Corinthians 9:1

The Rights of an Apostle

9:1 Am I not free? Am I not an apostle? Have I not seen Jesus our Lord? Are you not my work in the Lord?

1 Corinthians 16:10

16:10 Now if Timothy comes, see that he has nothing to fear among you, for he is doing the Lord’s work, as I am too.

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¹ tn The translation “[will] be punished” is given here by BDAG 428 s.v. ζημιόω 2. But the next clause says “he will be delivered” and so “suffering loss” is more likely to refer to the destruction of the “work” by fire or the loss of the reward that could have been gained.