Matthew 23:27

Whitened sepulchres. The Jews, lest they should be defiled with touching the sepuchres, whitened them on the outside, in order to distinguish them. But this exterior whiteness, covering interior corruption, was a genuine picture of the pharisaical character. But these men, says St. Gregory, can have no excuse before the severe judge at the last day; for, whilst they shew to the view of mankind so beautiful an appearance of virtue, by their very hypocrisy they demonstrate that they are not ignorant how to live well. (Moral. xxvi.) --- Tell me, you hypocrite, what pleasure there is in wickedness? why do you not wish to be what you wish to appear? What it is beautiful to appear, is beyond a doubt more beautiful to be. Be therefore what you appear, or appear what you really are. (St. John Chrysostom)