Internal Essence of the Matter
We should not merely cleave to the literal meaning, however, as so many literalists do. This is being merely satisfied with the rind of the fruit which provides neither strength nor food for the soul. One must penetrate to the kernel itself, seeking to perceive the internal essence of the matter. For this the natural man is blind, regardless of how learned, proficient in the Word of God, and able he may be to understand the context and convey the literal meaning of the text to others. A godly person, on the contrary, immediately begins to view the unique clarity, nature, and power of spiritual matters contained in the text and his perception increases the more he engages himself in observing and meditating upon these matters.
Wilhelmus à Brakel, The Christian's Reasonable Service, ed. Joel R. Beeke, trans. Bartel Elshout, vol. 1 (Grand Rapids, MI: Reformation Heritage Books, 1992), 78.