Killing the bird and sprinkling its blood (Leviticus 14:7) is similar to Exodus 24:6–8. This is where Moses sprinkled all of Israel with blood to establish them as God's covenant community. In these verses, they cleansed the individual by sprinkling them with blood and allowed them to return to the community. They also used fresh water in cleansing ceremonies and in preparing sacrifices (Numbers 8:7; Leviticus 1:9, 13).