The interpretation timeline
Hosea 6:6 Douay-Rheims

For I desired mercy, and not sacrifice: and the knowledge of God more than holocausts.

A.D. 215 – 1875 9 witnesses

Patristic

before A.D. 750
215
A.D.
c. A.D. 150–215
“For to every one who has turned to God in truth and with a whole heart, the doors are open, and the thrice-glad Father receives his truly repentant child. And true repentance is to be no longer bound in the same sins for which he denounced death against himself, but to eradicate them completely from the soul. For on their uprooting God takes up his abode again in you. For it is said there is great and exceeding joy and festivity in the heavens with the Father and the angels when one sinner turns and repents. This is why he cries, "I will have mercy, and not sacrifice."”
Source
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“But he would not threaten the impenitent if he failed to pardon the penitent. This would be doubtful only if he had not revealed elsewhere the profusion of his mercy. Has he not said, "He who is fallen shall rise, and he who was turned away shall return"? He it is, most assuredly, who "will have mercy rather than sacrifice." The heavens and the angels who are there rejoice at human repentance. Look at you now, sinner, be of good heart! You see where it is that you are a cause of joy.”
Source
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“For the Word of God Himself tells us that He prefers the performance of His commandments to the offering of sacrifice. God proclaims this, Moses declares it to the people, Paul preaches it to the Gentiles. Do that which you understand is most profitable for the time. "I prefer mercy," it is said, "rather than sacrifice." Are they not, then, rather Christians in truth who condemn their own sin, than they who think to defend it? "The just is an accuser of himself in the beginning of his words." He who accuses himself when he has sinned is just, not he who praises himself.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Great is the principle of mercy to God. Not only his to us, but also that issuing from us to our fellow servants. In the Old Testament and the New, God lays down innumerable laws pertaining to this matter. He orders us to be benevolent continually in all quarters, through words, money and deeds. And Moses throughout—up and down, here and there—scatters words about these matters in all his legislations. And in the person of God the prophets shout, "I desire mercy, and not sacrifice." And all the apostles act and speak in harmony with these prophetic words. Therefore let us not neglect the matter. By mercy we greatly benefit ourselves, not the poor only. We receive much more than we provide.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“and knowledge of God I desire more than burnt offerings.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“For I desired mercy, and not sacrifice,.... That is, the one rather than the other, as the next clause explains it. Sacrifices were of early use, even before the law of Moses; they were of divine appointment, and were approved and accepted of by the Lord; they were types of Christ, and led to him, and were continued unto his death; but in comparison of moral duties, which respect love to God, and to our neighbour, the Lord did not will them, desire them, and delight in them; or he had more regard for the former than the latter; see Sa1 15:22; nor did he will or accept at all of the sacrifices ordered to the calves at Dan and Bethel; nor others, when they were not such as the law required, or were not offered up in the faith of Christ, attended with repentance for sin, and in sincerity, and were brought as real expiatory sacrifices for sin, and especially as now abrogated by the sacrifice of Christ. And as these words are twice quoted by our Lord, at one time to justify his mercy, pity, and compassion, to the souls of poor sinners, by conversing with them, Mat 9:13; and at another time to justify the disciples in an act of mercy to their bodies when hungry, by plucking ears of corn on the sabbath day, Mat 12:7; "mercy" may here respect both acts of mercy shown by the Lord, and acts of mercy done by men; both which the Lord wills, desires, and delights in: he takes pleasure in showing mercy himself, as appears by his free and open declarations of it; by the throne of grace and mercy he has set up; by the encouragement he gives to souls to hope in his mercy; by the objects of it, the chief of sinners; by the various ways he has taken to display it, in election, in the covenant of grace, in the mission of Christ, in the pardon of sin by him, and in regeneration; and by his opposing it to everything else, in the affair of salvation. And he likewise has a very great regard to mercy as exercised by men; as this is one of the weightier matters of the law, and may be put for the whole of it, or however the second table of it, which is love to our neighbours, and takes in all kind offices done to them; and especially designs acts of liberality to necessitous persons; which are sacrifices God is well pleased with, even more than with the ceremonious ones; these being such in which men resemble him the merciful God, who is kind to the unthankful, and to the evil; and the knowledge of God more than burnt offerings; which were reckoned the greatest and most excellent sacrifices, the whole being the Lord's; but knowledge of God is preferred to them; by which is meant, not the knowledge of God, the light of nature, which men might have, and not him; nor by the law of Moses, as a lawgiver, judge, and consuming fire; but a knowledge of him in Christ, as the God and Father of Christ, as the God of all grace, gracious and merciful in him; as a covenant God and Father in him, which is through the Gospel by the Spirit, and is eternal life, Joh 17:3; this includes in it faith and hope in God, love to him, fear of him and his goodness, and the whole worship of him, both internal and external. These words seem designed to expose and remove the false ground of trust and confidence in sacrifices the people of Israel were prone unto; as we find they were in the times of Isaiah, who was contemporary with Hoses; see Isa 1:12. The Targum interprets them of those that exercise mercy, and do the law of the Lord.”
Source
1849
A.D.
1774–1849
“Mercy: sincere piety, ver. 4. — Sacrifice. They had offered many, chap. v. 6. (Calmet) — “My victims are the salvation of the faithful, and the conversion of sinners.” (St. Jerome) — Knowledge, of a practical nature, which was deficient, chap iv. 6., and vi. 4. (Calmet)”
1871
A.D.
1871
“mercy--put for piety in general, of which mercy or charity is a branch. not sacrifice--that is, "rather than sacrifice." So "not" is merely comparative (Exo 16:8; Joe 2:13; Joh 6:27; Ti1 2:14). As God Himself instituted sacrifices, it cannot mean that He desired them not absolutely, but that even in the Old Testament, He valued moral obedience as the only end for which positive ordinances, such as sacrifices, were instituted--as of more importance than a mere external ritual obedience (Sa1 15:22; Psa 50:8-9; Psa 51:16; Isa 1:11-12; Mic 6:6-8; Mat 9:13; Mat 12:7). knowledge of God--experimental and practical, not merely theoretical (Hos 6:3; Jer 22:16; Jo1 2:3-4). "Mercy" refers to the second table of the law, our duty to our fellow man; "the knowledge of God" to the first table, our duty to God, including inward spiritual worship. The second table is put first, not as superior in dignity, for it is secondary, but in the order of our understanding.”
Source
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“The reason why God was obliged to punish in this manner is given in the following verses. Hos 6:6. "For I take pleasure in love, and not in sacrifices; and in the knowledge of God more than in burnt-offerings. Hos 6:7. But they have transgressed the covenant like Adam: there have they acted treacherously towards me." Chesed is love to one's neighbour, manifesting itself in righteousness, love which has its roots in the knowledge of God, and therefore is connected with "the knowledge of God" here as in Hos 4:1. For the thought itself, compare the remarks on the similar declaration made by the prophet Samuel in Sa1 15:22; and for parallels as to the fact, see Isa 1:11-17; Mic 6:8; Psa 40:7-9, and Psa 50:8., in all which passages it is not sacrifices in themselves, but simply the heartless sacrifices with which the wicked fancied they could cover their sins, that are here rejected as displeasing to God, and as abominations in His eyes. This is apparent also from the antithesis in Hos 6:7, viz., the reproof of their transgression of the covenant. המּה (they) are Israel and Judah, not the priests, whose sins are first referred to in Hos 6:9. כּאדם, not "after the manner of men," or "like ordinary men," - for this explanation would only be admissible if המּה referred to the priests or prophets, or if a contrast were drawn between the rulers and others, as in Psa 82:7 - but "like Adam," who transgressed the commandment of God, that he should not eat of the tree of knowledge. This command was actually a covenant, which God made with him, since the object of its was the preservation of Adam in vital fellowship with the Lord, as was the case with the covenant that God made with Israel (see Job 31:33, and Delitzsch's Commentary). The local expression "there," points to the place where the faithless apostasy had occurred, as in Psa 14:5. This is not more precisely defined, but refers no doubt to Bethel as the scene of the idolatrous worship. There is no foundation for the temporal rendering "then."”
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.