What does Joshua 6:17 mean?

He said, 'The city and everything in it is set apart for the Lord. Only Rahab, the woman who hid our spies, and everyone with her in her house will be spared, because she protected our men.' Joshua 6:17 - Modern Text Bible

(Joshua makes it clear: Jericho is devoted to God, not for personal gain. Rahab is saved because of her faith and kindness.)