Joshua 2:15; Joshua 2:18

15 Then she let them down by a cord through the window: for her house was upon the town wall, and she dwelt upon the wall.

18 Behold, when we come into the land, thou shalt bind this line of scarlet thread in the window which thou didst let us down by: and thou shalt bring thy father, and thy mother, and thy brethren, and all thy father's household, home unto thee.