A chiasm is a literary structure where vocabulary of the first section of a passage is repeated in reverse order in the second. The center of the chiasm is typically the climax of the passage. In 1 Corinthians 3:13 the center and climax is “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.”Aeach man’s work will become evident; Bfor the day will show it because it is to be revealed with fire, B’and the fire itself will test the quality A’of each man’s work.