What does Judges 1:24 mean?
The tribe of Ephraim has a plan to capture the city of Bethel, also known as Luz. They are eager to reclaim the place because the site is nearly sacred to the people of Israel (Genesis 28:16–22). Bethel means "house of God."Apparently following a similar plan used against Jericho (Joshua 2:1–7), the people of Ephraim send spies to scout out Bethel, looking for the shortest route possible to get into the city. The spies see a man leaving the city and offer to deal kindly with the man if he will show them the route.
It's true that something similar happened with Jericho. The prostitute Rahab protected the spies. She, however, confessed loyalty to the God of Israel. She was allowed to live when the walls came down, but she and her people were also fully integrated into the people of Israel. It's clear that the people of Ephraim mean to allow this man to live if he will show them the way into the city. However, this man does not claim to follow Israel's God. He becomes a traitor to his people simply to save his own life.