The fracturing of language at Babel (Gn 11.1-9) is one of the defining events which, for Augustine, gives language its current fallen characteristics and limitations. But does the fallen state of language necessarily imply that language creates a chiasm rather than a bridge between the human and the divine? And if so, is language used in vain to invoke God? This paper addresses these questions through an analysis of the role of language in Augustine’s Ostia ascent narrative (conf. 9, 24). According to a first line of interpretation, language creates a chiasm rather than a bridge between the human and the divine in the ‘Ostia ascent’. According to a second line of interpretation, though fractured, language does not create a chiasm but rather a bridge between the human and the divine. By identifying and intertextually analyzing three facets of the function of language in conf. 9, 24, namely the grammatical, the ontological, and the modal, this paper aims at substantiating the second line of interpretation. Part one explores Augustine’s use of the expression per uerbum (Jn 1.1-15) to analyze the grammar of human and divine language. Part two analyzes the ontological function of language as a mechanism of mediation by showing that the ascent in conf. 9, 24 is similar to the structure of manifestation evident in the transition from forma dei to forma serui (Phil 2.6-7) in Augustine’s s. 264. Finally, part three shows that for Augustine, the conversion from the schola superbiae of rhetoric pride to the humility of the schola pectoris implicitly requires the mode of language as a precondition for ascent in conf. 9, 24. As such, this paper concludes, the three facets of language, namely the ontological, grammatical and modal, function in conf. 9, 24 to unite, mediate and transform the human experience of the divine.