Final answer:
Rahab asked the spies to swear that they would show kindness to her family and spare them, and to not destroy her house.
Step-by-step explanation:
In Joshua 2:12f, Rahab asked the spies to swear that they would show kindness to her family and spare them when they conquer the city. She also asked them to not destroy her house, as it was marked with a scarlet cord so that the Israelite army would recognize it as a safe place.
Learn more about Rahab's request to the spies