TSK · Hebrews 9:18

You shall take a bunch of hyssop, and dip it in the blood that is in the basin, and strike the lintel and the two doorposts with the blood that is in the basin; and none of you shall go out of the door of his house until the morning.

For if that first covenant had been faultless, then no place would have been sought for a second.

According to the law, nearly everything is cleansed with blood, and apart from shedding of blood there is no remission.