Canons of The Second Council at Constantinople
1 If anyone shall not confess that the nature or essence of the Father, of the Son, and of the Holy Spirit is one, as also the force and the power; a consubstantial Trinity, one Godhead to be worshipped in three subsistences or Persons: let him be anathema.
2 For there is but one God even the Father of whom are all things, and one Lord Jesus Christ through whom are all things, and one Holy Spirit in whom are all things.
1 If anyone shall not confess that the Word of God has two nativities, the one from all eternity of the Father, without time and without body; the other in these last days, coming down from heaven and being made flesh of the holy and glorious Mary, Mother of God and always a virgin, and born of her: let him be anathema.
1 If anyone shall say that the wonder-working Word of God is one [Person] and the Christ that suffered another; or shall say that God the Word was with the woman-born Christ, or was in him as one person in another, but that he was not one and the same our Lord Jesus Christ, the Word of God, incarnate and made man, and that his miracles and the sufferings which of his own will he endured in the flesh were not of the same [Person]: let him be anathema.
1 If anyone shall say that the union of the Word of God to man was only according to grace or energy, or dignity, or equality of honor, or authority, or relation, or effect, or power, or according to good pleasure in this sense that God the Word was pleased with a man, that is to say, that he loved him for his own sake, as says the senseless Theodorus, or [if anyone pretends that this union exists only] so far as likeness of name is concerned, as the Nestorians understand, who call also the Word of God Jesus and Christ, and even accord to the man the names of Christ and of Son, speaking thus clearly of two persons, and only designating disingenuously one Person and one Christ when the reference is to his honor, or his dignity, or his worship; if anyone shall not acknowledge as the Holy Fathers teach, that the union of God the Word is made with the flesh animated by a reasonable and living soul, and that such union is made synthetically and hypostatically, and that therefore there is only one Person, to wit: our Lord Jesus Christ, one of the Holy Trinity: let him be anathema.
2 As a matter of fact the word "union" has many meanings, and the partisans of Apollinaris and Eutyches have affirmed that these natures are confounded inter se, and have asserted a union produced by the mixture of both. On the other hand the followers of Theodorus and of Nestorius rejoicing in the division of the natures, have taught only a relative union.
3 Meanwhile the Holy Church of God, condemning equally the impiety of both sorts of heresies, recognizes the union of God the Word with the flesh synthetically, that is to say, hypostatically.
4 For in the mystery of Christ the synthetical union not only preserves unconfusedly the natures which are united, but also allows no separation.
1 If anyone understands the expression "one only Person of our Lord Jesus Christ" in this sense, that it is the union of many hypostases, and if he attempts thus to introduce into the mystery of Christ two hypostases, or two Persons, and, after having introduced two persons, speaks of one Person only out of dignity, honor or worship, as both Theodorus and Nestorius insanely have written; if anyone shall calumniate the holy Council of Chalcedon, pretending that it made use of this expression [one hypostasis] in this impious sense, and if he will not recognize rather that the Word of God is united with the flesh hypostatically, and that therefore there is but one hypostasis or one only Person, and that the holy Council of Chalcedon has professed in this sense the one Person of our Lord Jesus Christ: let him be anathema.
2 For since one of the Holy Trinity has been made man, viz.: God the Word, the Holy Trinity has not been increased by the addition of another person or hypostasis.
1 If anyone shall not call in a true acceptance, but only in a false acceptance, the holy, glorious, and ever-virgin Mary, the Mother of God, or shall call her so only in a relative sense, believing that she bare only a simple man and that God the word was not incarnate of her, but that the incarnation of God the Word resulted only from the fact that he united himself to that man who was born [of her]; if he shall calumniate the Holy Synod of Chalcedon as though it had asserted the Virgin to be Mother of God according to the impious sense of Theodore; or if anyone shall call her the mother of a man or the Mother of Christ, as if Christ were not God, and shall not confess that she is exactly and truly the Mother of God, because that God the Word who before all ages was begotten of the Father was in these last days made flesh and born of her, and if anyone shall not confess that in this sense the holy Synod of Chalcedon acknowledged her to be the Mother of God: let him be anathema.
1 If anyone using the expression, "in two natures," does not confess that our one Lord Jesus Christ has been revealed in the divinity and in the humanity, so as to designate by that expression a difference of the natures of which an ineffable union is unconfusedly made, [a union] in which neither the nature of the Word was changed into that of the flesh, nor that of the flesh into that of the Word, for each remained that it was by nature, the union being hypostatic; but shall take the expression with regard to the mystery of Christ in a sense so as to divide the parties, or recognizing the two natures in the only Lord Jesus, God the Word made man, does not content himself with taking in a theoretical manner the difference of the natures which compose him, which difference is not destroyed by the union between them, for one is composed of the two and the two are in one, but shall make use of the number [two] to divide the natures or to make of them Persons properly so called: let him be anathema.
1 If anyone uses the expression "of two natures," confessing that a union was made of the Godhead and of the humanity, or the expression "the one nature made flesh of God the Word," and shall not so understand those expressions as the holy Fathers have taught, to wit: that of the divine and human nature there was made an hypostatic union, whereof is one Christ; but from these expressions shall try to introduce one nature or substance [made by a mixture] of the Godhead and manhood of Christ; let him be anathema.
2 For in teaching that the only-begotten Word was united hypostatically [to humanity] we do not mean to say that there was made a mutual confusion of natures, but rather each [nature] remaining what it was, we understand that the Word was united to the flesh.
3 Wherefore there is one Christ, both God and man, consubstantial with the Father as touching his Godhead, and consubstantial with us as touching his manhood.
4 Therefore they are equally condemned and anathematized by the Church of God, who divide or part the mystery of the divine dispensation of Christ, or who introduce confusion into that mystery.
1 If anyone shall take the expression, Christ ought to be worshipped in his two natures, in the sense that he wishes to introduce thus two adorations, the one in special relation to God the Word and the other as pertaining to the man; or if anyone to get rid of the flesh, [that is of the humanity of Christ,] or to mix together the divinity and the humanity, shall speak monstrously of one only nature or essence of the united (natures), and so worship Christ, and does not venerate, by one adoration, God the Word made man, together with his flesh, as the Holy Church has taught from the beginning: let him be anathema.
1 If anyone does not confess that our Lord Jesus Christ who was crucified in the flesh is true God and the Lord of Glory and one of the Holy Trinity: let him be anathema.
1 If anyone does not anathematize Arius, Eunomius, Macedonius, Apollinaris, Nestorius, Eutyches and Origen, as well as their impious writings, as also all other heretics already condemned and anathematized by the Holy Catholic and Apostolic Church, and by the aforesaid four Holy Synods and [if anyone does not equally anathematize] all those who have held and hold or who in their impiety persist in holding to the end the same opinion as those heretics just mentioned: let him be anathema.