(19) Whosoever shall go out of the doors of thy house into the street, his blood shall be upon his head.--Comp. Exodus 12:22 (the account of the Passover), "Ye shall. . . . strike the lintel and the two side-posts with the blood that is in the bason: and none of you shall go out at the door of his house until the morning; for the Lord will pass through to smite the Egyptians." What the blood was to the houses of Israel in Egypt, that the scarlet line in the window was to the house of Rahab. Both alike prefigured "the precious blood of Christ."

Verse 19. - His blood shall be upon his head (cf. Leviticus 20:9). "If we will wander out of the limits that God has set us, we cast ourselves out of His protection." (Bp. Hall).

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.And it shall be, that whosoever shall go out of the door of thy house into the street,.... After they have been taken in, and when the Israelites were come into the city:

his blood shall be upon his head, and we will be guiltless; if he is killed by any person, his death will be owing to himself, and no blame to be laid on us; nor shall we reckon ourselves guilty of the breach of the oath taken:

and whosoever shall be with thee in the house, his blood shall be on our head, if any hand be upon him: if anyone within doors is killed by an Israelite entering in, the guilt of the blood shall lie upon us, and we will be answerable, according to the tenor of the oath, "our life for yours", Joshua 2:14.