She said, "According to your words, so be it." She sent them away, and they departed. She tied the scarlet line in the window.
Behold, when we come into the land, you shall bind this line of scarlet thread in the window which you did let us down by. You shall gather to yourself into the house your father, your mother, your brothers, and all your father's household.
When she travailed, one put out a hand, and the midwife took and tied a scarlet thread on his hand, saying, "This came out first."
Afterward his brother came out, that had the scarlet thread on his hand, and his name was called Zerah.
As for the living bird, he shall take it, and the cedar wood, and the scarlet, and the hyssop, and shall dip them and the living bird in the blood of the bird that was killed over the running water.
To cleanse the house he shall take two birds, and cedar wood, and scarlet, and hyssop.
then the priest shall command them to take for him who is to be cleansed two living clean birds, and cedar wood, and scarlet, and hyssop.
Song of Solomon 4:3
Your lips are like scarlet thread. Your mouth is lovely. Your temples are like a piece of a pomegranate behind your veil.