From the early Church Fathers to now.
“And she struck twice upon his neck, and out off his head, and took off his canopy from the pillars, and rolled away his headless body.”
“Canopy, to convince all that it was the head of Holofernes. (Menochius) — Body, on the ground; (chap. xiv. 14.) perhaps to cut off the head more easily, (Calmet) and that it might appear more ghastly (Haydock) at the first entrance. (Tirinus)”
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.