He is to sprinkle some of the blood on it with his finger seven times to cleanse it and consecrate it from the uncleanness of the Israelites.
KJV
And he shall sprinkle of the blood upon it with his finger seven times, and cleanse it, and hallow it from the uncleanness of the children of Israel.
ASV
And he shall sprinkle of the blood upon it with his finger seven times, and cleanse it, and hallow it from the uncleannesses of the children of Israel.