Judges 1:3

And Judah said unto Simeon his brother, Come up with me into my lot, that we may fight against the Canaanites; and I likewise will go with thee into thy lot. So Simeon went with him.

Cross-references

Judges 1:17 Historical context

Judges 1:17 recounts the same alliance—Judah and Simeon together defeating Canaanites—a direct continuation of this verse.

Joshua 19:1 Historical context

Joshua 19:1 shows Simeon's inheritance was within Judah's territory, explaining why they could fight together as in Judges 1:3.

2 Samuel 10:11 echoes the mutual assistance pact—Joab and Abishai offer similar conditional help in battle.