Mark 7:2-4

2and had seen that some of his disciples ate their bread with defiled, that is, unwashen, hands.

3For the Pharisees, and all the Jews, except they wash their hands diligently, eat not, holding the tradition of the elders:

4and when they come from the marketplace, except they wash themselves, they eat not: and many other things there be, which they have received to hold, washings of cups, and pots, and brasen vessels.