Joshua 2:15-18

15And she let them down by a cord through the window; for her house was upon the city-wall, and she dwelt upon the wall.

16And she said to them, Go to the mountain, that the pursuers may not meet with you; and hide yourselves there three days, until the pursuers have returned; and afterwards go your way.

17And the men said to her, We will be quit of this thine oath which thou hast made us swear.

18Behold, when we come into the land, thou shalt bind in the window this line of scarlet thread by which thou hast let us down; and thou shalt gather to thee in the house thy father, and thy mother, and thy brethren, and all thy father's household;