Joshua 2:21. In the window — Forthwith, partly that the spies might see it hung out before their departure, and so the better know it at some distance; partly lest some accident might occasion a neglect about it.

2:8-21 Rahab had heard of the miracles the Lord wrought for Israel. She believed that his promises would certainly be fulfilled, and his threatenings take effect; and that there was no way of escape but by submitting to him, and joining with his people. The conduct of Rahab proved that she had the real principle of Divine faith. Observe the promises the spies made to her. The goodness of God is often expressed by his kindness and truth, Ps 117:2; in both these we must be followers of him. Those who will be conscientious in keeping promises, are cautious in making them. The spies make needful conditions. The scarlet cord, like the blood upon the doorpost at the passover, recalls to remembrance the sinner's security under the atoning blood of Christ; and that we are to flee thereto for refuge from the wrath of a justly offended God. The same cord Rahab used for the saving of these Israelites, was to be used for her own safety. What we serve and honour God with, we may expect he will bless, and make useful to us.The "line" or cord was spun of threads dyed with cochineal: i. e., of a deep and bright scarlet color. The color would catch the eye at once, and supplied an obvious token by which the house of Rahab might be distinguished. The use of scarlet in the Levitical rites, especially in those more closely connected with the idea of putting away of sin and its consequences (compare e. g., Leviticus 14:4, Leviticus 14:6,Leviticus 14:51; Numbers 19:6), naturally led the fathers, from Clement of Rome onward, to see in this scarlet thread, no less than in the blood of the Passover (Exodus 12:7, Exodus 12:13, etc.), an emblem of salvation by the Blood of Christ; a salvation common alike to Christ's messengers and to those whom they visit. 21. she bound the scarlet line in the window—probably soon after the departure of the spies. It was not formed, as some suppose, into network, as a lattice, but simply to hang down the wall. Its red color made it conspicuous, and it was thus a sign and pledge of safety to Rahab's house, as the bloody mark on the lintels of the houses of the Israelites in Egypt to that people. Forthwith, partly, that the spies might see it hung out before their departure, and so the better know it at some distance; partly, lest some accident might occasion a mistake or neglect about it; and partly, for her own comfort, it being pleasant and encouraging to her to have in her eye the pledge of her deliverance.

And she said, according to your words, so be it,.... She agreed, that if the conditions required were not performed, they would be quit of their oath, but if they were, she expected it would be fulfilled:

and she sent them away, and they departed; took their leave of each other:

and she bound the scarlet line in the window; immediately, as Abarbinel thinks, and in the sight of the spies, that they might see that she conformed to their direction, and that they might take notice where she fastened it; and that she herself might, at the sight of it, be put in mind of the design of it, and be an encouragement to her faith as to the safety of her and her father's house; and it being a thing so trifling and insignificant in itself, would not be taken notice of by the inhabitants, or be thought to be done with any design; though, according to the instruction of the spies, it seems as if it was to be done when they came into the land, and into the city, and which seems most likely that it was then done.

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.