From the writings of Robert Youngblood

A. David, Doeg, and the priests at Nob (21:2–9)

B. David flees to a foreign city for refuge: Gath (21:10–16)

C. David meets his family and enlarges his forces (22:1–2)

B’. David flees to a foreign city for refuge: Mizpeh of Moab (22:3–5)

A’. Saul, Doeg, and the priests of Nob (22:6–22)