“give me a reliable sign.” All the men could really give was their word on the matter, which they did (Josh. 2:14), and that did turn out to be enough. Also, they told her to tie the rope out the window so they could tell which house was hers in the attack. The fact that Rahab’s house was in the wall and the rope was left out the window during the attack is good evidence that the entire wall did not fall down.