'Unclean' in the Bible

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

So the Pharisees and Scribes put the question to Him: "Why do your disciples transgress the traditions of the Elders, and eat their food with unclean hands?"

There is nothing outside a man which entering him can make him unclean; but it is the things which come out of a man that make him unclean."

"Have *you* also so little understanding?" He replied; "do you not understand that anything whatever that enters a man from outside cannot make him unclean,

"What comes out of a man," He added, "that it is which makes him unclean.

all these wicked things come out from within and make a man unclean."