Cleanliness is next to Godliness, so suggests the Ramban. This week we read: Aaron and his sons shall wash their hand and their feet from the laver when they come into the Inner Mishkan…One of the early authorized Aramaic translations, Onkelos, renders wash as sanctify, makingcleanliness synonymous with holiness.The Sages instituted washing of the hands before prayer. Why not the feet too? Ramban explains that unlike us, the priests walked barefoot in the Temple, so they were instructed to wash their feet.