From the early Church Fathers to now.
“But as the same Lord liveth, his angel hath been my keeper both going hence, and abiding there, and returning from thence hither: and the Lord hath not suffered me his handmaid to be defiled, but hath brought me back to you without pollution of sin, rejoicing for his victory, for my escape, and for your deliverance.”
“And abiding. Greek, “for my face has deluded him to his ruin, and he has not committed sin with me, for defilement and shame. And all the people were much amazed; and bowing down, they adored the Lord, and said, with one accord: Our God, thou art blessed, because this day thou hast brought the enemies of thy people to nought.” (Haydock) — Judith’s guardian angel defended her; as Jacob’s did him, Genesis xlviii. (Worthington)”
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.