Since his early days Augustine was acquainted with the Varronian triplicity of sound (vocalis, semivocalis-mutus). He employed it even in his Enarrationes in psalmos when explaining the musical instruments mentioned in the Psalter. After having explored the allegorical meaning of the instruments mentioned in particular biblical passages-including the human voice-he interprets their symphony in the final Psalm 150, relating the Varronian triad uoce-spiritu-pulsu to the anthropological triplicity mens-spiritus-corpus as well as to the theological Trinity. Since his early days Augustine was acquainted with the Varronian triplicity of sound (vocalis, semivocalis-mutus). He employed it even in his Enarrationes in psalmos when explaining the musical instruments mentioned in the Psalter. After having explored the allegorical meaning of the instruments mentioned in particular biblical passages-including the human voice-he interprets their symphony in the final Psalm 150, relating the Varronian triad uoce-spiritu-pulsu to the anthropological triplicity mens-spiritus-corpus as well as to the theological Trinity.