Commentary on the Acts of the Apostles John Calvin
Commentary on Acts duty joyfully, than if they consider that the price of the blood of Christ is committed to them. For hereupon it followeth, that unless they take pains in the Church, the lost souls are not only imputed to them, but they be also guilty of sacrilege, because they have profaned the holy blood of the Son of God, and have made the redemption gotten by him to be of none effect, so much as in them lieth. And this is a most cruel offense, if, through our sluggishness, the death of Christ do not only become vile or base, but the fruit thereof be also abolished and perish; and it is said that God hath purchased the Church, to the end we may know that he would have it remain wholly to himself, because it is meet and right that he possess those whom he hath redeemed.
Notwithstanding, we must also remember, that all mankind are the bondslaves of Satan until Christ set us free from his tyranny, gathering us into the inheritance of his Father.
But because the speech which Paul useth seemeth to be somewhat hard, we must see in what sense he saith that God purchased the Church with his blood. For nothing is more absurd than to feign or imagine God to be mortal or to have a body. But in this speech he commendeth the unity of person in Christ; for because there be distinct natures in Christ, the Scripture cloth sometimes recite that apart by itself which is proper to either. But when it setteth God before us made manifest in the flesh, it doth not separate the human nature from the Godhead. Notwithstanding, because again two natures are so united in Christ, that they make one person, that is improperly translated sometimes unto the one, which doth truly and in deed belong to the other, as in this place Paul doth attribute blood to God; because the man Jesus Christ, who shed his blood for us, was also God. This manner of speaking is caned, of the old writers, communicatio idiomatum, because the property of the one nature is applied to the other. And I said that by this means is manifestly expressed one person of Christ, lest we imagine him to be double, which Nestorius did in times past attempt; and yet for all this we must not imagine a confusion of the two natures which Eutychus went about to bring in, or which the Spanish dog, Servetus, hath at this time invented, who maketh the Godhead of Christ nothing else but a form or image of the human nature, which he dreameth to have always shined in God.
29. For I know. Paul doth now exhort the Ephesians to watch diligently, by the necessity, which is a most sharp prick. For he saith that "grievous wolves are ready to invade the sheepfold." This is a thing always incident to the Church to be hated of wolves. Wherefore, there is no time to sleep. But the more and the more hurtful those be who break in, the more watchful must the pastors be. For God doth sometimes release some part of trouble, that the flock may be fed quietly and peaceably; and as when the weather is fair and clear, the sheep are fed more safely in the fields, and there is more danger when the air is cloudy and dark; so the Church of God hath sometimes some fair weather granted to it. After that cometh a troublesome