Cover your homes and families in bright red.
For most things are made clean with blood.

Cover Yourselves With The Blood Of Jesus

And she said, Let it be as you say. Then she sent them away, and they went; and she put the bright red cord in the window.
Joshua 2:21

Heb 9:19 For when Moses had given all the rules of the law to the people, he took the blood of goats and young oxen, with water and red wool and hyssop, and put it on the book itself and on all the people

Heb 9:22 And by the law almost all things are made clean with blood, and without blood there is no forgiveness.

Jos 2:1 Then Joshua, the son of Nun, sent two men from Shittim secretly, with the purpose of searching out the land, and Jericho. So they went and came to the house of a loose woman of the town, named Rahab, where they took their rest for the night.

Jos 2:18 If, when we come into the land, you put this cord of bright red thread in the window from which you let us down; and get your father and mother and your brothers and all your family into the house;

Jos 2:21 And she said, Let it be as you say. Then she sent them away, and they went; and she put the bright red cord in the window.

Jos 2:24 And they said to Joshua, Truly, the Lord has given all the land into our hands; and all the people of the land have become like water because of us.