The conflict between Rehoboam and Jeroboam (see 2 Chronicles 12:15) continued into Abijah's reign. Abijah might have tried to reunite the north and south, as suggested by his speech (2 Chronicles 13:5–12). The large number of soldiers on each side is similar to David’s census (2 Samuel 24:9). Israel's larger army highlights God's help for Judah (2 Chronicles 13:14–19).