Exodus 29:19-20, “Take the other ram, and Aaron and his sons shall lay their hands on its head. Slaughter it, take some of its blood and put it on the lobes of the right ears of Aaron and his sons, on the thumbs of their right hands, and on the big toes of their right feet…”
Applying the blood to the ear, was about hearing only God’s Word, while applying it to the thumb was about rightly serving God and God’s people. Lastly, but equally important is the application of the blood covering to the “big toes of their right feet,” so that the sanctified walk of the priests would be examples to the people. What priest walked here on earth in perfect righteousness?