Verses with the word unwashen in the New Testament (3 verses):

Matthew 15:20
These are the things which defile a man: but to eat with unwashen hands defileth not a man.

Mark 7:2
And when they saw some of his disciples eat bread with defiled, that is to say, with unwashen, hands, they found fault.

Mark 7:5
Then the Pharisees and scribes asked him, Why walk not thy disciples according to the tradition of the elders, but eat bread with unwashen hands?