Nos. two and three of Baumstark's "celebrated" "laws of liturgical development" ("criteria . . . of relative [liturgical] age")

"a [liturgical] text is [1] the more ancient the less influenced by the Bible and [2] the more recent the more symmetrical.  What is more, . . . the tendency towards symmetry is felt before the influence of the Bible, for there are many cases in which the symmetry, itself clearly secondary, has been destroyed by the more and more invasive impact [(action . . . envahissante)] of biblical language."

     Anton Baumstark, Liturgie comparée:  principes et méthodes pour l'étude historique des liturgies chrétiennes (Chevetogne, Belgium: Editions de Chevetogne, 1953 [1939]), 67, citing (his student) Fritz Hamm and (subsequently) Hieronymus Engberding (translation mine).  "celebrated" from Haquin, André Haquin, "Un prière eucharistique valide, sans paroles de consécration?: L’anaphore Syrienne d’Addaï et Mari," Revue théologique de Louvain 37, no. 4 (2006): 536n8 (532-544).  This struck me at first as counter-intuitive, but makes sense in the light of the presence of liturgy in Scripture itself (67-68).