Hatch, Edwin. Influence of Greek Ideas and Usages upon the Christian Church. Ed. by A.M. Fairbairn. 4th ed. London, 1892. Hibbert Lectures, 1888.
Gilbert, George Holley. The Greek Strain in Our Oldest Gospels. North American Review. Vol. 192, 1910.
Hirn, Yrjo. The Sacred Shrine. 574 pp. Macmillan. London, 1912.
Lecky, W.E.H. Rationalism in Europe. 2 vols. Appleton. N.Y. and London, 1910. Vol. II, pp. 220 f.