The secret pact between Rahab and the Israelite spies reaches its conclusion, marking a critical moment where she secures both their safe escape and her family's future survival. By accepting their terms, she offers a binding legal confirmation that their proposed plan is correct [מצודת דוד]. Her agreement also acknowledges that the spies are free from their initial oath, which was made under pressure. Because of this, she affirms the deal as an immediate reality rather than just a future promise [אברבנאל], fully accepting the conditions as they stand [ביאור שטיינזלץ].
With the agreement settled, she sends the men on their way. This departure involves a verbal farewell and a blessing of peace [רד"ק]. However, it is also a highly active role on her part. Because the spies follow her specific advice to hide in the mountains, their successful escape is directly credited to her guidance [מצודת דוד].
Her final act of preparation involves tying a scarlet thread in her window, using the very same rope she had just used to lower the spies to safety [אברבנאל]. Commentators differ on exactly when she tied this cord. One perspective suggests that she did not tie it immediately; rather, the narrative mentions it early, but she actually attached it later when the Israelites finally crossed into the land and began their conquest of the city [רד"ק, מצודת דוד]. Another approach argues that she secured the thread the moment the spies left. Relying on her wisdom, she realized she had no way of knowing exactly when the Israelite army would arrive [ביאור שטיינזלץ]. If she waited until the battle began, the townspeople would notice the sudden appearance of the thread, suspect her of treason, and execute her. By hanging it immediately, she avoided drawing any dangerous attention [מלבי"ם, אברבנאל].
A red thread in her window was actually a familiar sight. During her forty years working as a prostitute, she would hang a red cord to signal when she was menstruating, warning men to stay away. In this crucial moment, the thread served a dual purpose: it was the agreed-upon sign for the Israelite army and a clever method to keep local men away from her home. In fact, the sudden absence of men visiting her house served as personal proof to Rahab that a deep terror had fallen upon the people of the land. Their fear of the approaching Israelites was so great that they had completely lost their physical desires.
Rahab's courageous actions to save the spies, combined with her sincere repentance, her conversion, and her plea for God's forgiveness, ultimately brought her an extraordinary reward. She went on to marry Joshua, and from their family line emerged eight prophets [צאינה וראינה].