‘Haec et mea fides est quando haec est catholica fides’ (Aug. De Trin., I.iv.7)
1. Cyril's Second Letter to Nestorius
'Mother of God' the Fathers said, and we, If we in faith with them are still to stand, Must say the same. The One born of Mary Is God in truth, united with a man. God - of the Father before all time born; Man of his mother, late in time he comes. God unchanging, not by suff'ring torn; Man in flesh and soul united with the Son. This union wondrous comes not late in life But in the womb occurs at once. And so The Holy Mother does not just bear Christ, But God the Word himself in her does grow.
In pain she pushes God, to this world come;
Honour the mother, then, to confess the Son.
2. Cyril's Synodical letter to John of Antioch
'Mother of God she is' - this was my cry, And all that I stepped forward to defend. Some claim - laugh at them - that I say that He Brought flesh from heaven; let this lie now end. Mother of God she is, so then how can The nature she births be not hers? So know That in the one true faith with you I stand Confession shared, the Church at peace, and so Agree do we about the made-man Son - Two natures, come together in Him - but Not mix'd, not mingled - yet the Son is one; One Christ; one Lord, united and uncut.
Christ's church on earth knows peace. We are at one
Just as two natures are in God's own Son.
3. The Tome of Pope Leo
The creed will teach - the gospels too - the faith On which alone all our salvation rests: Two natures met together, come to birth, The one person of our Saviour most blest. Each nature acts by its own property - But each co-op'rates in the other's works - So strength meets weakness; death, eternity; Miracles shine in one; one feels its hurts. All this for us - our need, our guilt. From her Most blest he took form, but he took not fault; So taking our nature from his mother He could suffer - salvation the result.
Our hope of life is found nowhere but He
Who alone could suffer impassibly.
4. The Definition of Chalcedon
In Godhead perfect; in humanity Perfect too. One Son, our Lord Christ Jesus; A rational soul and body has he; And so he is consubstantial with us, Like us in ev'ry way - except our sin Alone. Consubstantial with the Father Too, born before all ages had begun; Born now of Mary, Virgin, God's mother. Two natures, then, united in person; No change, no mixture of the natures two; No split, and nor is there separation; One hypostasis only does ensue.
Prophets and Fathers alike have taught us this:
In him meet heav'n and earth with holy kiss.
Steve Holmes is Senior Lecturer in Theology and Director of Operations,
School of Divinity, University of St Andrews
Editor, International Journal of Systematic Theology (www.ijst.org)