Mark 7:2-4

2 Now when they saw some of his disciples eating bread with defiled, that is, unwashed, hands, they found fault.

3 (For the Pharisees, and all the Jews, don't eat unless they wash their hands and forearms, holding to the tradition of the elders.

4 They don't eat when they come from the marketplace, unless they bathe themselves, and there are many other things, which they have received to hold to: washings of cups, pitchers, bronze vessels, and couches.)