From the early Church Fathers to now.
“Now Holofernes, in going round about, found that the fountains which supplied them with water, ran through an aqueduct without the city on the south side: and he commanded their aqueduct to he cut off.”
“An aqueduct: the fountain must therefore have been on a higher ground than the city, though the latter was on an eminence. (Calmet) — Yet water may be forced to ascend by pipes. (Haydock)”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.