From the early Church Fathers to now.
1 Reformed · 1 Methodist · 1 Catholic
“And the king’s servants and his officers said: Let young women be sought for the king, virgins and beautiful,”
“Then said the king's servants that ministered unto him,.... Fearing that, if Vashti should be restored, vengeance would be taken on them; or however to remove the grief and melancholy of the king, they gave the following advice: let there be fair young virgins sought for the king; that he might enjoy them, and choose one of them, the most agreeable to him, and put her in the room of Vashti.”
“Let there be fair young virgins sought for the king - This was the usual way in which the harem or seraglio was furnished: the finest women in the land, whether of high or low birth, were sought out, and brought to the harem. They all became the king's concubines: but one was raised, as chief wife or sultana, to the throne; and her issue was specially entitled to inherit.”
“Beautiful. Thus Abisag was brought to David, 3 Kings i. 2. The Turkish emperors select women from all their dominions, without distinction of noble or ignoble; as all are their slaves.”
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.