He was fond of tracing the etymologies of key Christian terms; he was erudite in the Bible and early Patristic literature; and he had a pervasive interest in the nature of God and man, especially in the person of Christ (Christology).

[4] He was not reluctant to develop and express his own theories about key ecclesiastical issues, which led to later commentaries, emendations, and perhaps even censorship of parts of his works.

[5] The principal works transmitted under Anastasius' name include the Viae Dux, Quaestiones et Responsiones, Hexaemeron, Homilia i, ii, iii de creatione hominis, and the Narrationes.

The Viae Dux - also called the Hodegos (Greek transliteration) and "Guide Along the Right Path" (English translation) - was written in defense of the Chalcedonian Creed.

A collection of works by Anastasius, the Viae Dux served to support the true faith and to counter the attacks of heretics, in particular Monophysites.