Joshua 22:12
And when the children of Israel heard of it, the whole congregation of the children of Israel gathered themselves together at Shiloh, to go up to war against them.
Cross-reference
Joshua 22:15 shows the delegation sent to investigate—the prudent response that replaced the initial impulse to attack, preventing bloodshed.
Joshua 22:32 records the peaceful resolution—Phinehas and the princes return confirming no rebellion, showing the wisdom of inquiry before war.
In Deuteronomy 13:15, the law commands destroying an apostate city — this is the precedent for Israel's decision to go to war.
In Judges 20:1-11, all Israel assembles to war against Gibeah for a grievous sin — a parallel to this assembly against the eastern tribes.
Romans 10:2 describes zeal without knowledge—the same misplaced zeal that drove Israel to gather for war here before investigating the altar's purpose.
1 Samuel 1:14 shows Eli misjudging Hannah as drunk—a parallel to Israel's misjudgment of the eastern tribes' intentions, both corrected by explanation.
In Acts 11:3, Jewish believers similarly react to perceived boundary violation, criticizing Peter for eating with Gentiles—parallel to Israel's rush to war over the altar.
Galatians 4:17 shows misguided zeal that excludes others—similar to Israel's hasty assumption about the eastern tribes leading them to prepare for war.
Galatians 4:18 commends zeal for a good cause—contrasting with Israel's zeal here, which was based on a false assumption and nearly caused civil war.