John Calvin on the Immensity of God

"The doctrine of Scripture concerning the immensity and the spirituality of the essence of God, should have the effect not only of dissipating the wild dreams of the vulgar, but also of refuting the subtleties of a profane philosophy. . . [God's] immensity surely ought to deter us from measuring him by our sense, while his spiritual nature forbids us to indulge in carnal or earthly speculation concerning him.  With the same view he frequently represents heaven as his dwelling-place.  It is true, indeed, that as he is incomprehensible, he fills the earth also, but knowing that our minds are heavy and grovel on the earth, he raises us above the world, that he make shake off our sluggishness and inactivity.  And here we have a refutation to the error of the Manichees (God is made up of physical body and spiritual soul), who, by adopting two first principles, made the devil almost the equal of God.  This, assuredly, was both to destroy his unity and restrict his immensity.  Their attempt to pervert certain passages of Scripture proved their shameful ignorance, as the very nature of the error did their monstrous infatuation.  The Anthropomorphites (those who attribute human qualities to God), also, who dreamed of a [physical] God, because mouth, ears, eyes, hands, and feet are often ascribed to him in Scripture, are easily refuted.  For who is so devoid of intellect as not to understand that God, in so speaking, lisps with us as nurses are wont to do with little children?  Such modes of expression, therefore, do not so much express what kind of a being God is, as accommodate the knowledge of him to our feebleness.  In doing so he must, of course, stoop far below his proper height" (John Calvin, Institutes of the Christian Religion).