Mark 7:2-3, 8

Now when they saw some of His disciples eat bread with defiled, that is, with unwashed hands, they found fault. For the Pharisees and all the Jews do not eat unless they wash their hands in a special way, holding the tradition of the elders.

For laying aside the commandment of God, you hold the tradition of men—the washing of pitchers and cups, and many other such things you do.”