2 Samuel 2:27
And Joab said, As God liveth, unless thou hadst spoken, surely then in the morning the people had gone up every one from following his brother.
Cross-reference
2 Samuel 2:14
Historical context
In 2 Samuel 2:14, Joab's suggestion of a contest sparked the fighting — Abner now says if Joab hadn't spoken, it would have ended by morning.
1 Samuel 25:26
Parallel
In 1 Samuel 25:26, Abigail uses the same oath 'As God lives' and praises restraint from bloodshed — Abner similarly invokes God to stress the cost of continued fighting.
Psalm 133:1
Contrast
Psalm 133:1 praises brotherly unity — here Joab laments that brothers were fighting, contrasting with the ideal.
Galatians 5:15
Parallel
Galatians 5:15 warns believers against biting and devouring each other — the same theme of internal conflict among brothers.