Leviticus 16:15 "Then he shall slaughter the goat of the sin offering which is for the people, and bring its blood inside the veil and do with its blood as he did with the blood of the bull, and sprinkle it on the mercy seat and in front of the mercy seat.

Numbers 19:9 'Now a man who is clean shall gather up the ashes of the heifer and deposit them outside the camp in a clean place, and the congregation of the sons of Israel shall keep it as water to remove impurity; it is purification from sin.

Numbers 19:17 Then for the unclean person they shall take some of the ashes of the burnt purification from sin and flowing water shall be added to them in a vessel.

Hebrews 9:19 For when every commandment had been spoken by Moses to all the people according to the Law, he took the blood of the calves and the goats, with water and scarlet wool and hyssop, and sprinkled both the book itself and all the people,

Hebrews 10:4 For it is impossible for the blood of bulls and goats to take away sins. (NASB ©1995)