‘But if he cannot afford a lamb, then he shall bring to the Lord his guilt offering for that in which he has sinned, two turtledoves or two young pigeons, one for a sin offering and the other for a burnt offering.

But if she cannot afford a lamb, then she shall take two turtledoves or two young pigeons, the one for a burnt offering and the other for a sin offering; and the priest shall make atonement for her, and she will be clean.’”

Cedar

As for the live bird, he shall take it together with the cedar wood and the scarlet string and the hyssop, and shall dip them and the live bird in the blood of the bird that was slain over the running water.

The priest shall take cedar wood and hyssop and scarlet material and cast it into the midst of the burning heifer.

Hyssop

You shall take a bunch of hyssop and dip it in the blood which is in the basin, and apply some of the blood that is in the basin to the lintel and the two doorposts; and none of you shall go outside the door of his house until morning.

A clean person shall take hyssop and dip it in the water, and sprinkle it on the tent and on all the furnishings and on the persons who were there, and on the one who touched the bone or the one slain or the one dying naturally or the grave.

Purify me with hyssop, and I shall be clean;

Wash me, and I shall be whiter than snow.

General references

To cleanse the house then, he shall take two birds and cedar wood and a scarlet string and hyssop,

The priest shall take cedar wood and hyssop and scarlet material and cast it into the midst of the burning heifer.