And Aaron and his sons thou shalt bring unto the door of the tabernacle of the congregation, and shalt wash them with water. Thou - shalt wash them - This was done emblematically, to signify that they were to put away all filthiness of the flesh and spirit, and perfect holiness in the fear of God; 2 Corinthians 7:1.
Related Commentaries of Exodus 29:4
Exodus 29:4
4 And Aaron and his sons thou shalt bring unto the door of the tabernacle of the congregation, and shalt wash them with water.