Laudator Temporis Acti

Tertullian, On the Prescription of Heretics 7 (tr. Peter Holmes):

What indeed has Athens to do with Jerusalem? What concord is there between the Academy and the Church? What between heretics and Christians?

Quid ergo Athenis et Hierosolymis? quid Academiae et ecclesiae? quid haereticis et Christianis?

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Jerome, Letter 22.29 (tr. F. A. Wright):

What communion hath light with darkness? What concord hath Christ with Belial? What has Horace to do with the Psalter, Virgil with the Gospels and Cicero with Paul?

Quae enim communicatio luci ad tenebras, qui consensus Christo et Belial? Quid facit cum psalterio Horatius? cum evangeliis Maro? cum apostolo Cicero?

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Alcuin, Letter 124, tr. Donald A. Bullough,"What has Ingeld to do with Lindisfarne?" Anglo-Saxon England 22 (1993) 93-125 (at 124):

Let God's words be read at the episcopal dinner-table. It is right that a reader should be heard, not a harpist, patristic discourse, not pagan song. What has Hinield to do with Christ? The house is narrow and has no room for both. The Heavenly King does not wish to have communion with pagan and forgotten kings listed name by name: for the eternal King reigns in Heaven, while the forgotten pagan king wails in Hell.

Epistolae Karolini Aevi, Tomus II, ed. Ernestus Duemmler (Berlin: Weidmann, 1895), p. 183:

Verba Dei legantur in sacerdotali convivio. Ibi decet lectorem audiri, non citharistam; sermones patrum, non carmina gentium. Quid Hinieldus cum Christo? Angusta est domus: utrosque tenere non poterit. Non vult rex celestis cum paganis et perditis nominetenus regibus communionem habere; quia rex ille aeternus regnat in caelis, ille paganus perditus plangit in inferno.