Some of the most profound, direct, and sobering passages in all of Scripture are structured chiastically. I dare say the authors did such not only for the sake of emphasizing their points, but also to help their audience’s memorization of them.
1 Corinthians 3.16-17 – a text that arguably serves as a summary of all of Paul’s thought expressed in 1 Corinthians – is a case in point. Imagine the possible effects of every church member memorizing this passage and meditating on it regularly, not only in Corinth of old, but in every congregation today.
Source: The Shape of Biblical Language – John Breck (SVS Press, 1994); p.213.