Leviticus 14:49

And he shall take to cleanse the house two birds, and cedar wood, and scarlet, and hyssop:

Cross-reference

In Leviticus 14:4-7, the same materials (birds, cedar, scarlet, hyssop) are used for cleansing a person — the house ritual mirrors the person ritual.

Psalm 51:7 Allusion

Psalm 51:7 uses hyssop from cleansing rituals like this one, linking physical purification to spiritual cleansing.

Hebrews 9:19 describes old covenant purification with hyssop and scarlet wool, mirroring the house cleansing ritual here.

In Numbers 19:6, cedar, hyssop, and scarlet are cast into the red heifer fire — same symbolic items used for different purification rites.