It is better for a man to be silent and be [a Christian], than to talk and not to be one. " The kingdom of God is not in word, but in power." '^ Men " believe with the heart, and confess with the mouth," the one "unto right- eousness," the other " unto salvation." '^ It is good to teach, if he who speaks also acts. For he who shall both "do and teach, the same shall be great in the kingdom." '^