But those who, like King David, have received both the spirit of understanding and of eloquence, have ventured to compose speeches and write books in order that the speeches shall not perish. In some places David has told of God’s purposes, in other places of His deeds, and in still other places he has reported His words; and those who in times past have written glosses to the psalms which David composed have had more to say about what was in David’s mind than about the words that he wrote. For to every word they have added long comments of what David had in thought when he spoke this word; and in these comments they point out the meaning which he had in his thoughts at every word that he wrote in the Psalter. In like manner they have proceeded, who have interpreted the words of the Evangelists, and they have brought out much that the Evangelists have left unsaid. Thus they have shown that their comments are on the words of thought which the lips had left unspoken. And if one has received the God-given spirit of a perfect understanding, he has a gift of such a nature that, when he hears a few spoken words, he perceives many words of thought. But David did not himself gloss the Psalter for the reason that he wished to leave to others the task of expressing all those thoughts which came up in his mind, while he continued writing the Psalms as originally planned. Thus all do who have a speech on the tongue which ought to be interpreted: they proceed with the discourse as planned and begun, and leave to others the task of expressing in words what is in their thoughts. Still, you should know that no one has glossed the sayings of David who sat by him, while he was composing the Psalter, and asked what was in his mind at the time. And from this you will perceive that it is the grace of the spirit of insight which guides such men to examine the foundations of the sermons that they hear. Next they investigate how widely the roots ramify which lie beneath the speech; they consider carefully how many limbs grow out of it; and finally they make a count of the branches that sprout from each limb. They also note precisely what bough they take for themselves, that they may be able to trace it correctly back to the roots from which it originally grew. Now if you understand this thoroughly and if you investigate with care and precision everything that you hear told, you will not fall into error, no matter whether the comments that you hear be right or wrong, if God has given you the spirit that leads to a right understanding. For every man who is gifted with proper insight and gets into the right path at the beginning will be able to find the highways of reason and to determine what expressions are suitable and will best fit the circumstances. Now gather from these things whatever you can that may give insight; but it does not seem necessary to discuss them further. ------------------------------------------------------------------------