143. And who have not known the depths of Satan, as they speak, signifies they who do not understand their interiors, which are mere falsities. That by "Satan" is meant the hell of those who are in falsities, and abstractly, falsities, may be seen above (n. 97); therefore by its "depths" are signified the interiors of the doctrine separated from charity, which are mere falsities. The depths and interiors of that doctrine are what are delivered in their books and lectures in the universities, and thence in their preachings, the nature of which is pointed out in what is prefixed to the first chapter, where their doctrines are quoted; and particularly in what is there adduced concerning Justification by Faith and concerning Good Works; where it may be seen stated that the clergy alone know the arcana of that doctrine, but not the laity, therefore the latter principally are meant by those "who have not known the depths of Satan."