Commentary Purg XXII 142-144

Mary is presented as wanting to be sure others are fed properly at the marriage feast in Cana of Galilee (the same biblical scene [John 2:1-7] that furnished, in [Purg XIII 29], her charitable answer to Envy); she was not herself interested in eating, and her mouth is rather presented as being preserved for her later task, as intercessor, of intervening for sinners with her prayers.