Daniel elaborates on the chiastic structure of 2nd Samuel 15–20 by showing a couple of simpler chiastic structures in Numbers 7, which was discussed during the Torah study.
The one in 2nd Samuel is the largest chiastic structure that Daniel has presented so far. However, the focus of this chiastic structure, as in most chiastic structures, is the Messiah. God places these chiastic structures in the Bible to reveal clues about the role of the Messiah or events that will occur in the Messiah’s life on earth.