'Thread' in the Bible
This is the law about the leper's disease in the thread of wool or linen material, in clothing or in anything of skin, saying how it is to be judged clean or unclean.
Then the priest is to give orders to take, for him who is to be made clean, two living clean birds and some cedar wood and red thread and hyssop.
And he will take the living bird and the wood and the red thread and the hyssop and put them in the blood of the bird which was put to death over flowing water.
And in order to make the house clean, let him take two birds and cedar-wood and red thread and hyssop;
And take the cedar-wood and the hyssop and the red thread and the living bird and put them in the blood of the dead bird and in the flowing water, shaking it over the house seven times.
And he will make the house clean with the blood of the bird and the flowing water and with the living bird and with the cedar-wood and the hyssop and the red thread.