Matthew 23:26-28

You [spiritually]blind Pharisee, first clean the inside of the cup and of the plate [examine and change your inner self to conform to God’s precepts], so that the outside [your public life and deeds] may be clean also. “Woe to you, [self-righteous] scribes and Pharisees, hypocrites! For you are like whitewashed tombs which look beautiful on the outside, but inside are full of dead men’s bones and everything unclean. So you, also, outwardly seem to be just and upright to men, but inwardly you are full of hypocrisy and lawlessness. [Ps 5:9]