4. Lest, therefore, men should be in doubt that the Word is of this nature, the Lord has revealed to me its internal sense. This in its essence is spiritual, and resides in the external sense which is natural, as the soul in the body. This internal sense is the spirit which gives life to the Letter; and it can therefore bear witness to the divinity and holiness of the Word, and it can convince even the natural man, if he is willing to be convinced.