The interpretation timeline
1 Samuel 8:15 Douay-Rheims

Moreover he will take the tenth of your corn, and of the revenues of your vineyards, to give his eunuchs and servants.

A.D. 407 – 1849 4 witnesses

Patristic

before A.D. 750
date
unknown
c. A.D. 380
“Account these worthy to be esteemed your rulers and your kings, and bring them tribute as to kings; for by you they and their families ought to be maintained. As Samuel made constitutions for the people concerning a king, in the first book of Kings, and Moses did so concerning priests in Leviticus, so do we also make constitutions for you concerning bishops. For if there the multitude distributed the inferior services in proportion to so great a king, ought not therefore the bishop much more now to receive of you those things which are determined by God for the sustenance of himself and of the rest of the clergy belonging to him? But if we may add somewhat further, let the bishop receive more than the other received of old: for he only managed the affairs of the soldiery, being entrusted with war and peace for the preservation of men's bodies; but the other is entrusted with the exercise of the priestly office in relation to God, in order to preserve both body and soul from dangers. By how much, therefore, the soul is more valuable than the body, so much the priestly office is beyond the kingly. For it binds and looses those that are worthy of punishment or of remission. Wherefore you ought to love the bishop as your father, and fear him as your king, and honour him as your lord, bringing to him your fruits and the works of your hands, for a blessing upon you, giving to him your first-fruits, and your tithes, and your oblations, and your gifts, as to the priest of God; the first-fruits of your wheat, and wine, and oil, and autumnal fruits, and wool, and all things which the Lord God gives thee. And thy offering shall be accepted as a savour of a sweet smell to the Lord thy God; and the Lord will bless the works of thy hands, and will multiply the good things of the land. "For a blessing is upon the head of him that giveth."”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“And observe the wisdom of the prophet, or rather the lovingkindness of God. For because he wished to turn them from their desire, bringing together a number of difficult things he asserted what would be true of their future king, as, for instance, that he would make their wives grind at the mill, require the men to serve as shepherds and drivers of mules; for he described all the service appertaining to the kingdom in minute detail.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And he will take the tenth of your seed,.... When grown up and ripe, as their wheat and barley: and of your vineyards; the tenth of the grapes they should produce: and give to his officers, and to his servants; for the support and maintenance of them; and to pay this, besides the tithes of the priests and Levites, would make it very burdensome to them; and this was no other than what kings of other nations usually had, the like to whom they were desirous of having, and therefore must expect that they would insist upon the privileges and revenues that others had. In Babylon, as Aristotle (g) relates, there was an ancient law which required the tenth of whatever was imported for the public revenue, which was revived in the times of Alexander by Antimenes the Rhodian. In Arabia Felix was an island abounding with frankincense and myrrh, and various spices, the tenth of the fruits of which the king always had, as Diodorus Siculus (h) reports, as in the Apocrypha:"And as for other things that belong unto us, of the tithes and customs pertaining unto us, as also the saltpits, and the crown taxes, which are due unto us, we discharge them of them all for their relief.'' (1 Maccabees 11:35) (g) Oeconomic. l. 2. p. 283. (h) Bibliothec. l. 5. p. 317.”
Source
1849
A.D.
1774–1849
“Tenth. God had already claimed one tithe, which he had abandoned to his sacred ministers. We do not read that the kings of the Hebrews ever claimed (Calmet) a second tithe precisely, (Haydock) though they might have done it by the example of other kings, Leviticus xxvii. 30. Joseph had asserted the fifth part of the revenues of Egypt for its monarchs, Genesis xlvii. 26. — Eunuchs. Hebrew saris, denotes an officer of the court. It was not lawful for the Israelites to make any eunuchs, but they might employ foreigners.”
Source
Modern · 1953 →

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.