In 1974, he became a researcher at the CNRS, and in 1975 was awarded a lectureship in textual criticism and New Testament Greek at the Faculty of Protestant Theology in Montpellier.

He is attached to the Greek section of the Institut de recherche et d'histoire des textes (IRHT).

[2] With Jean Margain, he helped found a summer school for the teaching and dissemination of the languages of the Bible and the Christian East, first at the Protestant Faculty of Theology in Montpellier (1981–1985), then in Saintes (1986–1999), under the name Académie des Langues Anciennes.

[2] In June 1994, with David Charles Parker, he edited the proceedings of a symposium on the Codex Bezae held in Lunel in 1994.

As a theologian, he contributes to the Corpus Christi and L'Origine du christianisme series, directed by Gérard Mordillat and Jérôme Prieur.