25. Again, it often happens that a man who has attained, or thinks he has attained, to a higher grade of spiritual life, thinks that the commands given to those who are still in the lower grades are figurative; for example, if he has embraced a life of celibacy and made himself a eunuch for the kingdom of heaven's sake, he contends that the commands given in Scripture about loving and ruling a wife are not to be taken literally, but figuratively; and if he has determined to keep his virgin unmarried, he tries to put a figurative interpretation on the passage where it is said, "Marry thy daughter, and so shalt thou have performed a weighty matter." Accordingly, another of our rules for understanding the Scriptures will be as follows, -- to recognize that some commands are given to all in common, others to particular classes of persons, that the medicine may act not only upon the state of health as a whole, but also upon the special weakness of each member. For that which cannot be raised to a higher state must be cared for in its own state.