The presence of Christ in the Supper we must hold to be such as neither affixes him to the element of bread, nor encloses him in bread, nor circumscribes him in any way, (this would obviously detract from his celestial glory;) and it must, moreover, be such as neither divests him of his just dimensions, nor dissevers him by differences of place, nor assigns to him a body of boundless dimensions, diffused through heaven and earth. All these things are clearly repugnant to his true human nature. Let us never allow ourselves to lose sight of the two restrictions. First, Let there be nothing derogatory to the heavenly glory of Christ. This happens whenever he is brought under the corruptible elements of this world, or is affixed to any earthly creatures. Secondly, Let no property be assigned to his body inconsistent with his human nature. This is done when it is either said to be infinite, or made to occupy a variety of places at the same time. But when these absurdities are discarded, I willingly admit any thing which helps to express the true and substantial communication of the body and blood of the Lord, as exhibited to believers under the sacred symbols of the Supper, understanding that they are received not by the imagination or intellect merely, but are enjoyed in reality as the food of eternal life. For the odium with which this view is regarded by the world, and the unjust prejudice incurred by its defence, there is no cause, unless it be in the fearful fascinations of Satan. What we teach on the subject is in perfect accordance with Scripture, contains nothing absurd, obscure, or ambiguous, is not unfavourable to true piety and solid edification; in short, has nothing in it to offend, save that, for some ages, while the ignorance and barbarism of sophists reigned in the Church, the clear light and open truth were unbecomingly suppressed. And yet as Satan, by means of turbulent spirits, is still, in the present day, exerting himself to the utmost to bring dishonour on this doctrine by all kinds of calumny and reproach, it is right to assert and defend it with the greatest care.
 Calvin, John, Institutes of the Christian Religion IV, xvii, 19.