Mark 7:2-4

2 They had noticed that some of His disciples were eating their food with `unclean' (that is to say, unwashed) hands.

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.)