The interpretation timeline
Psalm 110:1 Douay-Rheims

I will praise thee, O Lord, with my whole heart; in the council of the just: and in the congregation.

A.D. 430 – 1875 5 witnesses

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“"I will make confession unto You, O Lord," he says, "with my whole heart" [Psalm 111:1]. Confession is not always confession of sins, but the praise of God is poured forth in the devotion of confession. The former mourns, the latter rejoices: the former shows the wound to the physician, the latter gives thanks for health. The latter confession signifies some one, not merely freed from every evil, but even separate from all the ill-disposed. And for this reason let us consider the place where he confesses unto the Lord with all his heart. "In the counsel," he says, "of the upright, and in the congregation:" I suppose, of those who shall "sit upon the twelve thrones, judging the twelve tribes of Israel." [Matthew 19:28] For there will be no longer an unjust man among them, the thefts of no Judas are allowed, no Simon Magus is baptized, wishing to buy the Spirit, while he designs to sell it; no coppersmith like Alexander does many evil deeds, [2 Timothy 4:14] no man covered with sheep's clothing creeps in with feigned fraternity; such as those among whom the Church must now groan, and such as she must then shut out, when all the righteous shall be gathered together.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“Hallelujah, I shall thank, etc. This psalm was based on the alphabet, one letter at the beginning of the verse and one in the middle of it, and so all of them [this psalm’s verses are] from “aleph” to “tav,” and so too is the second psalm. The first one speaks in praises of the Holy One, blessed be He, and the second one speaks in praise of a righteous, God-fearing person.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Praise ye the Lord,.... Or "hallelujah"; this is the title of the psalm, and is expressive of the subject matter of it; and so it stands in the Targum, Septuagint, Vulgate Latin, Ethiopic, and Arabic versions; as it should, as appears from the psalm being alphabetical; for the first letter of this word is the fifth and not the first of the alphabet; it is wanting in the Syriac version, which gives the title in this manner, without a name, concerning the glorious virtues of "the works of God; but it exhorts us to give thanks to Christ; and it is said in the person of the apostles.'' I will praise the Lord with my whole heart; the psalmist excites to praise God by his own example; the object of his praise is Jehovah, the self-existent Being, the Being of beings, the author of his Being, and in whom all men live and move, and have their being; the God of their mercies, temporal and spiritual, and therefore should praise him, even Jehovah, Father, Son, and Spirit; especially Jehovah the Messiah may be here intended, whose work of redemption is particularly attended to: the manner in which he determines to perform this service is, "with his whole heart": which ought to be engaged in every religious exercise, even the whole of it, all the powers and faculties of the soul, without being divided between other objects, and distracted or drawn off from the Lord by them; the phrase is not expressive of perfection, which is not to be expected in any duty, but of sincerity and cordial affection. The place where follows, in the assembly of the upright, and in the congregation: which may signify one and the same; even the place where upright persons assemble and gather together for divine worship, the tabernacle in David's time, and the temple afterwards; and may point at any place of worship in Gospel times, and the people that meet there; who being for the most part upright persons, or in a judgment of charity so accounted, though every individual among them may not be such, are thus called; and that because they have the uprightness, righteousness, and holiness of Christ imputed to them; and have right spirits renewed in them, and so are upright in heart; and, in consequence of this, walk uprightly according to the rules of the Gospel. It may be rendered, as it is by the Targum, "in the secret (e) of the upright, and the congregation;'' because here the secret of the Lord is made known to his people; the mysteries of his grace are revealed; and his ordinances, which are his counsel, are administered: or it may design some particular friends and acquaintance of the psalmist's, who privately met and took sweet counsel together, and communicated their secrets to one another, as the other word "congregation" may intend the public assembly of the people; and then the sense is, that he would sincerely praise the Lord both in private and public, and that because of his works; as follows. (e) "in secreto", Pagninus, Montanus, Piscator; so Ainsworth.”
Source
1849
A.D.
1774–1849
“Alleluia. This psalm consists of praise, and is alphabetical, (Berthier) the sixteen first letters being found at the head of each hemistic, to ver. 8; and in the 9th and 10th, we find the six last Hebrew letters, which is also the case in the following psalm. (Haydock) — In some Latin copies, we also find the same title in both, as they may relate to the captives. (Calmet) — The Church thanks God for the institution of the Eucharist, &c. (St. Augustine) (Eusebius) — Praise. Literally, “confess to.” (Haydock) — Congregation. Where there are few or many together, (Calmet) in private for my own sake, and in public for edification. (Worthington)”
Source
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“That which the poet purposes doing in Psa 111:1, he puts into execution from Psa 111:2 onwards. ועדה, according to Psa 64:7; Psa 118:14, is equivalent to ועדתם. According to Psa 111:10, הפציהם in Psa 111:2 apparently signifies those who find pleasure in them (the works of God); but חפצי = חפצי (like שׂמחי, Isa 24:7 = שׂמחי) is less natural than that it should be the construct form of the plural of חפץ, that occurs in three instances, and there was no need for saying that those who make the works of God the object of their research are such as interest themselves in them. We are led to the right meaning by לכל־חפצו in Kg1 9:11 in comparison with Isa 44:28; Isa 46:10, cf. Isa 53:10, where חפץ signifies God's purpose in accordance with His counsel: constantly searched into, and therefore a worthy object of research (דרשׁ, root דר, to seek to know by rubbing, and in general experimentally, cf. Arab. drâ of knowledge empirically acquired) according to all their aims, i.e., in all phases of that which they have in view. In Psa 111:4 זכר points to the festival which propagates the remembrance of the deeds of God in the Mosaic age; טרף, Psa 111:5, therefore points to the food provided for the Exodus, and to the Passover meal, together with the feast of unleavened bread, this memorial (זכּרון, Exo 12:14) of the exemption in faithfulness to the covenant which was experienced in Egypt. This Psalm, says Luther, looks to me as though it had been composed for the festival of Easter. Even from the time of Theodoret and Augustine the thought of the Eucharist has been connected with Psa 111:5 in the New Testament mind; and it is not without good reason that Psa 111:1-10 has become the Psalm of the church at the celebration of the Lord's Supper. In connection with הגּיד one is reminded of the Pesach-Haggada. The deed of redemption which it relates has a power that continues in operation; for to the church of Jahve is assigned the victory not only over the peoples of Canaan, but over the whole world. The power of Jahve's deeds, which He has made known to His people, and which they tell over again among themselves, aims at giving them the inheritance of the peoples. The works of His hands are truth and right, for they are the realization of that which is true and which lasts and verifies itself, and of that which is right, that triumphantly maintains its ground. His ordinances are נאמנים (occasionally pointed נאמנים), established, attested, in themselves and in their results authorizing a firm confidence in their salutariness (cf. Psa 19:8). סמוּכים, supported, stayed, viz., not outwardly, but in themselves, therefore imperturbable (cf. סמוּך used of the state of mind, Psa 112:8; Isa 26:3). עשׂוּים, moulded, arranged, viz., on the part of God, "in truth, and upright;" ישׂר is accusative of the predicate (cf. Psa 119:37), but without its being clear why it is not pointed וישׁר. If we have understood Psa 111:4-6 correctly, then פּדוּת glances back at the deliverance out of Egypt. Upon this followed the ratification of the covenant on Sinai, which still remains inviolable down to the present time of the poet, and has the holiness and terribleness of the divine Name for a guarantee of its inviolability. The fear of Jahve, this holy and terrible God, is the beginning of wisdom - the motto of the Chokma in Job (Job 28:28) and Proverbs (Pro 1:7; Pro 9:10), the Books of the Chokma. Psa 111:10 goes on in this Proverbs-like strain: the fear of God, which manifests itself in obedience, is to those who practise them (the divine precepts, פקודים) שׂכל טּוב (Pro 13:15; Pro 3:4, cf. Ch2 30:22), a fine sagacity, praiseworthy discernment - such a (dutiful) one partakes of everlasting praise. It is true, in glancing back to Psa 111:3, תּהלּתו seems to refer to God, but a glance forward to Psa 112:3 shows that the praise of him who fears God is meant. The old observation therefore holds good: ubi haec ode desinit, sequens incipit (Bakius).”
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.