John Gills Exposition of the Bible Commentary - Exodus 29:20
Then shall thou kill the ram ,.... As the other: and take of his blood , some part of it being received into a basin: and put it upon the tip of the right ear of Aaron, and upon the tip of the right ear of his sons ; according to Jarchi, this is the middle gristle within the ear; but Saadiah more rightly says it is the tender part which joins to the orb of the ear. The blood was put upon this part to sanctify it, and cleanse from sins that come thereby, and to teach the high priest... read more
Matthew Henry's Complete Commentary - Exodus 29:1-37
Here is, I. The law concerning the consecration of Aaron and his sons to the priest's office, which was to be done with a great deal of ceremony and solemnity, that they themselves might be duly affected with the greatness of the work to which they were called, and that the people also might learn to magnify the office and none might dare to invade it. 1. The ceremonies wherewith it was to be done were very fully and particularly appointed, because nothing of this kind had been done before,... read more