John Calvin on Mary, mother of Jesus

“It cannot be denied that God in choosing and destining Mary to be the Mother of his Son, granted her the highest honor.”

“Helvidius has shown himself too ignorant, in saying that Mary had several sons, because mention is made in some passages of the brothers of Christ.”

“I cannot think such language either right, or becoming, or suitable. ... To call the Virgin Mary the mother of God can only serve to confirm the ignorant in their superstitions.”

“We condemn those who affirm that a man once justified cannot sin. ... As to the special privilege of the Virgin Mary, when they produce the celestial diploma we shall believe what they say.”

“And at this day, the blessedness brought to us by Christ cannot be the subject of our praise, without reminding us, at the same time, of the distinguished honor which God was pleased to bestow on Mary, in making her the mother of his Only Begotten Son.”

“If there had been any unbelief in Mary, that could not prevent God from accomplishing his work in any other way which he might choose. But she is called blessed, because she received by faith the blessing offered to her, and opened up the way to God for its accomplishment.”

“Elisabeth, again, while she praises her, is so far from hiding the Divine glory, that she ascribes everything to God. And yet, though she acknowledges the superiority of Mary to herself and to others, she does not envy her the higher distinction, but modestly declares that she had obtained more than she deserved.”

“"[Elizabeth] calls Mary the mother of her Lord. This denotes a unity of person in the two natures of Christ; as if she had said, that he who was begotten a mortal man in the womb of Mary is, at the same time, the eternal God.... This name Lord strictly belongs to the Son of God 'manifested in the flesh,' (1 Timothy 3:16,) who has received from the Father all power, and has been appointed the highest ruler of heaven and earth, that by his agency God may govern all things.”

“The belief that the body of the Virgin was not interred on earth, but was taken to heaven, has deprived them of all pretext for manufacturing any relics of her remains, which otherwise might have been sufficiently abundant to fill a whole churchyard; yet in order to have at least something belonging to her, they sought to indemnify themselves for the absence of other relics with the possession of her hair and her milk. The hair is shown in several churches in Rome, and at Salvatierra in Spain, at Macon, St Flour, Cluny, Nevers, and in many other towns. With regard to the milk, there is not perhaps a town, a convent, or nunnery, where it is now shown in large or small quantites. Indeed, had the Virgin been a wet-nurse her whole life, or a dairy, she could not have produced more than is shown as hers in various parts.”