Ralph Waldo Emerson one said “What you do speaks so loudly that I cannot hear what you say.” He was making the same point made centuries before by Jesus: the way to spot a hypocrite is by their actions, not their claims:
Beware of false prophets, who come to you in sheep’s clothing, but inside are ravening wolves. You shall know them by their deeds.
Do men gather grapes from thorn bushes, or figs from thistles? Every good tree brings forth good fruit, but a corrupt tree brings forth evil. A good tree cannot bring forth evil fruit, nor can a corrupt tree bring forth good fruit. Therefore, by their fruits you will know them.
Jesus followed this with a warning to the deceitful:
Every tree that fails to bring forth good fruit will be hewn down and cast into the fire.