One would do well to be very cautious in singing the necessity of the function of the intellect regarding relating to God .  When a child is born who will never have intellectual prowess the parents may become overwhelmed with fear and despair .  
This is why bad theology is so harmful  .  And it behooves us all to  " drink deep or naught the Pyrenean spring " .
Last I recall the commandment is " Thou shalt love the Lord thy God "   This is a function of the Spirit , not the soul : the intellect 's being an attribute  of human nature residing in the human soul and dependent on the physical brain .