The Hands: Parts of, Mentioned: The Thumb
Source: TTT
Exodus 29:20
Slaughter the ram, take some of its blood, and put it on the right earlobes of Aaron and his sons, on the thumbs of their right hands, and on the big toes of their right feet. Sprinkle the remaining blood on all sides of the altar.
Leviticus 14:14, 17
The priest is to take some of the blood from the guilt offering and put it on the right earlobe of the one to be cleansed, on the thumb of his right hand, and on the big toe of his right foot. / And the priest is to put some of the oil remaining in his palm on the right earlobe of the one to be cleansed, on the thumb of his right hand, and on the big toe of his right foot, on top of the blood of the guilt offering.