אליגוריות החוקים, ספר ג פ״אAllegorical Interpretation of Genesis, Book III 81

א׳
1[228] So then it is best to trust God and not our dim reasonings and insecure conjectures: “Abraham believed God and was held to be righteous” (Gen. 15:6); and the precedence which Moses takes is testified to by the words he is “faithful in all My house” (Numb. 12:7). But if we repose our trust in our own reasonings, we shall construct and build up the city of Mind that corrupts the truth: for “Sihon” means “corrupting.”
ב׳
2[229] Accordingly the dreamer finds on rising up that all the movements and exertions of the foolish man are dreams void of reality. Yea Mind itself turned out to be a dream. And this is so, because to trust God is a true teaching, but to trust our vain reasonings is a lie. An irrational impulse issues forth and goes its rounds, both from our reasonings and from Mind that corrupts the truth; wherefore also he says, “There went forth a fire from Heshbon, a flame from the city of Sihon” (Numb. 21:28). In this way trust in plausible reasonings or in Mind corrupting that which is true, is irrational.