Professor Davidson held Personal Chairs in Systematic and Historical Theology at the University of Otago and the University of St Andrews, where he was also previously Dean of the Faculty and Head of the School of Divinity and Principal of St Mary's College.
He is a graduate in Classics from the University of Glasgow (starred First Class Honours, Logan Prize for most distinguished graduate in Arts; Ramsay, Cowan, Scott-Macfarlan, Jeffrey Medals; Kenmure and Coulter Prizes; Scott Scholarship) and in Theology from the University of Edinburgh (Distinction in Systematic Theology); he graduated PhD at Glasgow in 1992. He has held visiting fellowships in the UK, Europe, North America and Australia, and is a member of the Center of Theological Inquiry in Princeton.
Professor Davidson has taught and supervised extensively in Christian doctrine and in patristic theology and history. He has published widely in patristics, particularly in Latin or Western traditions, including the definitive critical edition of the first 'systematic' treatise on Christian ethics, the De Officiis of Ambrose of Milan (2 vols, Oxford University Press, 2002), and two widely-used volumes on early church history. He is currently completing an historical and theological study of 'Arianism' for Cambridge University Press and editing The Cambridge Handbook of Early Christian Theology. In systematic theology, he has written primarily on Christology, soteriology and the doctrine of God (e.g., God of Salvation: Soteriology in Theological Perspective, ed. with Murray A. Rae, Ashgate, 2011). He has a book on salvation due to appear with Bloomsbury T & T Clark in 2018; his other current projects include the completion of a major 2-volume study on Christology, history and ethics, an edited collection on soteriology, and a book on theological method. He is contracted to produce a volume on eschatology for Zondervan Academic's New Studies in Dogmatics (2019). He is a founding series editor of Bloomsbury T & T Clark's Studies in Systematic Theology monographs series.
He has published in, e.g, Journal of Theological Studies, International Journal of Systematic Theology, Journal of Early Christian Studies, Scottish Journal of Theology, Vigiliae Christianae, Recherches de Theologie Ancienne et Medievale, Studia Patristica, Irish Theological Quarterly, Journal of Reformed Theology, Theology, Catholic Historical Review, Ars Disputandi, Classical Review.
Some recent writing:
'Gospel Holiness: Some Dogmatic Reflections' in Kelly M. Kapic (ed), Sanctification: Explorations in Theology and Practice (IVP Academic, 2014), 189-211
'The Crucified One' in R. David Nelson (ed), Indicative of Grace - Imperative of Freedom: Essays in Honour of Eberhard Juengel in his 80th Year (Bloomsbury T & T Clark, 2014, pbk 2016), 29-49
'Church Growth in the Early Church', in David Goodhew (ed), Towards a Theology of Church Growth (Ashgate/Routledge, 2015), 145-68
'Divine Sufficiency: Theology in the Presence of God', in R. David Nelson, Darren Sarisky & Justin Stratis (eds), Theological Theology: Essays in Honour of John Webster (Bloomsbury T & T Clark 2015), 55-74
'In Memoriam: John Webster (1955-2016)', International Journal of Systematic Theology 18 (2016), 360-75
'Atonement and Incarnation', in Adam J. Johnson (ed), T & T Clark Companion to Atonement (Bloomsbury T & T Clark, 2017), 35-56
'Foreword' to Andrew R. Hay, God's Shining Forth: A Trinitarian Theology of Divine Light (Pickwick, 2017), ix-xi
'Later Theologians of the West', in Philip F. Esler (ed), The Early Christian World (2nd edn, Routledge, 2017), 606-30
'Ambrose', in Philip F. Esler (ed), The Early Christian World (2nd edn, Routledge, 2017), 1102-25
Review article of Paul D. Molnar, Faith, Freedom and the Spirit: The Economic Trinity in Barth, Torrance and Contemporary Theology (IVP Academic, 2015) and Divine Freedom and the Doctrine of the Immanent Trinity (2nd edn, Bloomsbury T & T Clark, 2017), Participatio 7 (2017)
'Christian Ethics: The Reception of Cicero in Ambrose's De officiis', in Richard Fletcher and W.H. Shearin (eds), The Oxford Handbook of Roman Philosophy (in press 2018)
'Christ', in Michael Allen and Scott R. Swain (eds), The Oxford Handbook of Reformed Theology (in press 2018)
'God' in Paul C. Kemeny and Gary Scott Smith (eds), The Oxford Handbook of Presbyterianism (in press 2018).