127. A harlot saw this; and she who in the destruction of the city lost all hope of any means of safety, because her faith had conquered, bound a scarlet thread in her window, and thus uplifted a sign of her faith and the banner of the Lord’s Passion; Josh. ii. 18. so that the semblance of the mystic blood, which should redeem the world, might be in memory. So, without, the name of Joshua was a sign of victory to those who fought; within, the semblance of the Lord’s Passion was a sign of salvation to those in danger. Wherefore, because Rahab understood the heavenly mystery, the Lord says in the Psalm: “I will be mindful of Rahab and Babylon that know Me.” Ps. lxxxvii. 4.