One great resource that uncovers an inverse parallelism in the Old (First) Testament is Dave A. Dorsey’s book, The Literary Structure of the Old Testament (Baker, 1999). This is a must have for anyone serious about interpreting and teaching the Old Testament.
Chiasm or chiasmus is a writing structure, defined by Wikipedia:
Read more about Chiasm in 2 Kings 4 and in General
Chiastic structure, or chiastic pattern, is a literary technique in narrative motifs and other textual passages. An example of chiastic structure would be two ideas, A and B, together with variants A’ and B’, being presented as A,B,B’,A’.