2 Samuel 10:11
And he said, If the Syrians be too strong for me, then thou shalt help me: but if the children of Ammon be too strong for thee, then I will come and help thee.
Cross-references
1 Chronicles 19:9–12
Parallel
In 1 Chronicles 19:9-12, the exact same battle narrative and Joab's speech are recorded — a direct parallel account.
Judges 1:3
Parallel
In Judges 1:3, Judah and Simeon pledge mutual military aid, directly paralleling Joab's strategy of supporting each other.