1 Corinthians 3:13-15; 1 Corinthians 5:2; 1 Corinthians 9:1; 1 Corinthians 15:58; 1 Corinthians 16:10 (New American Standard)

13 each man's work will become evident ; for the day will show it because it is to be revealed with fire, and the fire itself will test the quality of each man's work. 14 If any man's work which he has built on it remains, he will receive a reward. 15 If any man's work is burned up, he will suffer loss ; but he himself will be saved, yet so as through fire. 2 You have become arrogant and have not mourned instead, so that the one who had done this deed would be removed from your midst.

Paul's Use of Liberty

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 ? 58 Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your toil is not in vain in the Lord. 10 Now if Timothy comes, see that he is with you without cause to be afraid, for he is doing the Lord's work, as I also am.