Leviticus 14:16

14:16 Then the priest is to dip his right forefinger into the olive oil that is in his left hand, and sprinkle some of the olive oil with his finger seven times before the Lord.

Leviticus 14:18

14:18 and the remainder of the olive oil that is in his hand the priest is to put on the head of the one being cleansed. So the priest is to make atonement for him before the Lord.

Leviticus 14:27

14:27 and sprinkle some of the olive oil that is in his left hand with his right forefinger seven times before the Lord.