"Woe to you scribes and Pharisees, hypocrites! because ye are like white-washed sepulchres, which outwardly, indeed, appear beautiful, but within are full of bones of the dead and of all uncleanness.

And I have said to him, "My lord, you know." And he said to me, "These are those who come out of the great tribulation; and they washed their robes, and made them white in the blood of the Lamb.