'Line' in the Bible

lo, we are coming into the land, this line of scarlet thread thou dost bind to the window by which thou hast caused us to go down, and thy father, and thy mother, and thy brethren, and all the house of thy father thou dost gather unto thee, to the house;

And she saith, 'According unto your words, so it is;' and she sendeth them away, and they go; and she bindeth the scarlet line to the window.