Joshua 2:18
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.
Joshua 2:21
And she said, According unto your words, so be it. And she sent them away, and they departed: and she bound the scarlet line in the window.