"The religion of the mouth and tongue is like leaves on a tree. Though a tree ought not to be without leaves, they are not evidence of the goodness of the tree...A tree that is overfull of leaves seldom bears much fruit. A cloud may appear ready to produce rain, but bring instead much wind. As we read in proverbs: Like clouds and wind without rain is a man who boasts of gifts he does not give." -Jonathan Edwards, Religious Affections.