WNT(i)
3 (For the Pharisees and all the Jews--being, as they are, zealous for the traditions of the Elders--never eat without first carefully washing their hands,
4 and when they come from market they will not eat without bathing first; and they have a good many other customs which they have received traditionally and cling to, such as the rinsing of cups and pots and of bronze utensils, and the washing of beds.)
5 So the Pharisees and Scribes put the question to Him: "Why do your disciples transgress the traditions of the Elders, and eat their food with unclean hands?"