Leviticus 4:6

6and the priest shall dip his finger in the blood and asprinkle part of the blood seven times before the Lord in front of the veil of the sanctuary.

Leviticus 16:18-19

18Then he shall go out to the altar that is bbefore the Lord and cmake atonement for it, and shall take some of the blood of the bull and some of the blood of the goat, and put it on the horns of the altar all around. 19And he shall sprinkle some of the blood on it with his finger seven times, and cleanse it and consecrate it from the uncleannesses of the people of Israel.

Copyright information for ESV