126. Verse 17 But from the tree of the knowledge of good and evil, you shall not eat of it, for on the day that you eat of it you will surely die. Taken with those that precede them, these words mean that it is allowable, by means of every perception obtained from the Lord, for anyone to discover what truth and good are, but it is not allowable to do so from self and the world, that is, to probe into mysteries of faith by means of sensory evidence and factual knowledge. If he does the celestial in him dies.