there are two species of calling: for there is an universal call, by which God, through the external preaching of the word, invites all men alike, even those for whom he designs the call to be a savor of death, and the ground of a severer condemnation. Besides this there is a special call which, for the most part, God bestows on believers only, when by the internal illumination of the Spirit he causes the word preached to take deep root in their hearts.
