Cross reference
Mark 7:2
2 Now when they saw some of his disciples eating bread with defiled, that is, unwashed, hands, they found fault.
Acts 10:28
28 He said to them, "You yourselves know how it is an unlawful thing for a man who is a Jew to join himself or come to one of another nation, but God has shown me that I shouldn't call any man unholy or unclean.
Matthew 7:3-5
3 Why do you see the speck that is in your brother's eye, but don't consider the beam that is in your own eye?
4 Or how will you tell your brother, 'Let me remove the speck from your eye;' and behold, the beam is in your own eye?
5 You hypocrite! First remove the beam out of your own eye, and then you can see clearly to remove the speck out of your brother's eye.
Romans 14:14
14 I know, and am persuaded in the Lord Jesus, that nothing is unclean of itself; except that to him who considers anything to be unclean, to him it is unclean.
Daniel 6:4-5
4 Then the presidents and the satraps sought to find occasion against Daniel as touching the kingdom; but they could find no occasion nor fault, because he was faithful, neither was there any error or fault found in him.
5 Then said these men, We shall not find any occasion against this Daniel, except we find it against him concerning the law of his God.
Matthew 23:23-25
23 "Woe to you, scribes and Pharisees, hypocrites! For you tithe mint, dill, and cumin,{ cumin is an aromatic seed from Cuminum cyminum, resembling caraway in flavor and appearance. It is used as a spice.} and have left undone the weightier matters of the law: justice, mercy, and faith. But you ought to have done these, and not to have left the other undone.
24 You blind guides, who strain out a gnat, and swallow a camel!
25 "Woe to you, scribes and Pharisees, hypocrites! For you clean the outside of the cup and of the platter, but within they are full of extortion and unrighteousness.{TR reads "self-indulgence" instead of "unrighteousness"}
Acts 10:14-15
14 But Peter said, "Not so, Lord; for I have never eaten anything that is common or unclean."
15 A voice came to him again the second time, "What God has cleansed, you must not call unclean."
Acts 11:8
8 But I said, 'Not so, Lord, for nothing unholy or unclean has ever entered into my mouth.'