Leviticus 4:6
6 and the priest shall dip his finger in the blood and zsprinkle part of the blood seven times before the Lord in front of the veil of the sanctuary.
Leviticus 8:15
15 And he1 killed it, and hMoses took the blood, and with his finger put it on the horns of the altar around it and purified the altar and poured out the blood at the base of the altar and consecrated it to make atonement for it.