The interpretation timeline
Psalm 122:2 Douay-Rheims

Behold as the eyes of the servants are on the hands of their masters, As the eyes of the handmaid are on the hands of her mistress: so are our eyes unto the Lord our God, until he have mercy on us.

A.D. 379 – 1863 5 witnesses 6 excerpts

Patristic

before A.D. 750
379
A.D.
Basil of Caesarea Patristic
c. A.D. 330–379
“"Behold the eyes of the Lord are on them that fear him." Elsewhere, it says, "The eyes of the Lord are on the just," but here, "on those that fear him." When we look upon the Lord and our eyes are on him, so that we say, "Behold as the eyes of the servants are on the hands of their masters, so are our eyes unto the Lord our God," then, we, as it were, draw the he eye of the Lord to watch over us.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“...Let this singer ascend; and let this man sing from the heart of each of you, and let each of you be this man, for when each of you saith this, since ye are all one in Christ, one man saith this; and saith not, "Unto Thee, O Lord, have" we "lift up" our "eyes;" but, "Unto Thee, O Lord, have I lift up mine eyes" (ver. 1). Ye ought indeed to imagine that every one of you is speaking; but that One in an especial sense speaketh, who is also spread abroad over the whole world... What maketh the heart of a Christian heavy? Because he is a pilgrim, and longeth for his country. If thy heart be heavy on this score, although thou hast been prosperous in the world, still thou dost groan: and if all things combine to render thee prosperous, and this world smile upon thee on every side, thou nevertheless groanest, because thou seest that thou art set in a pilgrimage; and feelest that thou hast indeed happiness in the eyes of fools, but not as yet after the promise of Christ: this thou seekest with groans, this thou seekest with longings, and by longing ascendest, and while thou ascendest dost sing the Song of Degrees.”
Source
“What then followeth, since he hath said, "Unto Thee do I lift up mine eyes"? (ver. 2). How hast thou lifted up thine eyes? "Behold, even as the eyes of servants look unto the hand of their masters, and as the eyes of a maiden unto the hand of her mistress: even so our eyes wait upon the Lord our God, until He have mercy upon us." We are both servants, and a handmaiden: He is both our Master and our Mistress. What do these words mean? What do these similitudes mean? It is not wonderful if we are servants, and He our Master; but it is wonderful if we are a maiden, and He our Mistress. But not even our being a maiden is wonderful; for we are the Church: nor is it wonderful that He is our Mistress; for He is the Power and the Wisdom of God...When therefore thou hearest Christ, lift up thine eyes to the hands of thy Master; when thou hearest the Power of God and the Wisdom of God, lift up thine eyes to the hands of thy Mistress; for thou art both servant and handmaiden; servant, for thou art a people; handmaiden, for thou art the Church. But this maiden hath found great dignity with God; she hath been made a wife. But until she come unto those spiritual embraces, where she may without apprehension enjoy Him whom she hath loved, and for whom she hath sighed in this tedious pilgrimage, she is betrothed: and hath received a mighty pledge, the blood of the Spouse for whom she sigheth without fear. Nor is it said unto her, Do not love; as it is sometimes said to any betrothed virgin, not as yet married: and is justly said, Do not love; when thou hast become a wife, then love: it is rightly said, because it is a precipitate and preposterous thing, and not a chaste desire, to love one whom she knoweth not whether she shall marry. For it may happen that one man may be betrothed to her, and another man marry her. But as there is no one else who can be preferred to Christ, let her love without apprehension: and before she is joined unto Him, let her love, and sigh from a distance and from her far pilgrimage...”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Behold, as the eyes of servants look unto the hand of their masters; and as the eyes of a maiden unto the hand of her mistress,.... To direct them in their work and business, to point out unto them what they shall do; which is often done by a motion of the hand of the master or mistress, or rap of their fingers without speaking (e), which the servant observes: or to help and assist them against their enemies, and protect them from them; servants unarmed, and molested in their masters' service, have no other to flee to for protection but them; so Aben Ezra: or to receive food and sustenance from them, as servants and maidens do, from their masters and mistresses, in whose service they are; see Pro 31:15; so Kimchi and Arama; the latter observes, that they have their food in a way of mercy, and not justice; contrary to what the apostle says, Col 4:1; or in order to receive their wages from them; see Job 7:2; so our eyes wait upon the Lord our God; look unto him for direction in his service. Saints are servants, not of sin, nor of Satan, nor of men, but of the Lord; and not on the foot of creation only, but of redemption, and are made so by the grace of God; and they are willing to work, and are desirous to know what they should do; they inquire of God; they wait upon him, in his word and ordinances, for direction; and, being informed, do it with all their might, and follow the Lamb wheresoever he goes or directs them: and they look unto him for strength to assist them therein, being conscious of their own weakness; they apply to him, and wait upon him for strength, and do all they do in his name and strength; they look unto him for protection from all their enemies, which are many and mighty, and are stronger than they; and for food, both temporal and spiritual, and for all the necessaries and comforts both of a corporeal and spiritual life; and likewise for the recompence of reward, the reward of the inheritance, which is of grace, and not of debt. Joseph Kimchi thinks that the allusion is to servants, that look to the hand of their masters that correct and chastise them, and bear it patiently; and look to the hand that smites, till it shall have done, and mercy is shown them. And thus the saints look to the chastising hand of God, and humble themselves under it, and patiently endure it, till the Lord shall please to remove it from them; and this agrees with what follows: until that he have mercy upon us; God is gracious and merciful; and he has his set time to have mercy on his people: and it becomes them to continue praying to him, and waiting on him, until he is pleased to show it to them; men should pray always, and not faint; they will find mercy in due time, Luk 18:1. (e) Vid. Pignorium de Servis, p. 136. "Digiti crepantis signa novit eunuchus", Martial. l. 2. 82.”
Source
1849
A.D.
1774–1849
“Masters. Expecting liberty, or rather food; though it may also imply that they are ready to run at the first sign, which they observe with attention. Thus Menelaus had his eyes on Agamemnon. (Homer) (Calmet) — As servants, and particularly handmaids, are very attentive, and hope to receive sustenance, so we ought to pray with all earnestness to God for what is necessary. (Worthington) — All must come from Him. — Until. Or “waiting for his having mercy on us.” We shall not cease to look up to Him afterwards. (Berthier) — “Take care not to turn thine eyes away from mine.” (Terent. Adelph. ii. 1.)”
Source
1863
A.D.
1796–1863
“H. P. " Unto the hand." The hand dispenses favors, and inflicts punishment. Servants look to their masters and mistresses with anxiety to please them, and be rewarded. We should imitate them and have the good pleasure of God constantly in view.”
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.