‘ And Joshua said to the two men who had spied out the country, “Go to the prostitute's house and bring out from there the woman, and all that she has, as you swore to her.” '
In the excitement of victory Joshua did not forget the oath sworn to Rahab. His sensitivity was revealed in sending to her the two men whom she knew, and his wisdom was revealed in giving her some protection at a time when she might have been very vulnerable. She was relatively safe in the house with its token on the window, but once outside it she would be a target for any overexcited soldier.
This suggests that, although it was on the wall, her house had been preserved, or at least not badly damaged, a further evidence of the hand of YHWH.