| Barnes' Notes on the Bible Mine eyes fail for thy salvation - See the notes at Psalm 119:81-82. And for the word of thy righteousness - Thy righteous word - that it may be made known to me, and that I may see its beauty and enjoy it.
Clarke's Commentary on the BibleMine eyes fail - See on Psalm 119:82 (note).
Gill's Exposition of the Entire BibleMine eyes fail for that salvation,.... For temporal salvation or deliverance from oppressors; and for spiritual salvation, for views of an interest in it, the joys and comforts of it; and for the Messiah, the author of it; whom he was looking wistfully for, but, not coming so soon as expected, his eyes were tired and weary, and ready to fail, and his heart to faint; See Gill on Psalm 119:81; and for the word of thy righteousness; for the word of promise, which the righteousness or faithfulness of God was engaged to perform; or for the law of God, the rule of righteousness, and which shows what righteousness God requires; and for the bringing in of that righteousness of the Messiah, which could answer its demands; or for the Gospel, and more clear administration of it, which is called the word of righteousness, Hebrews 5:13; in which the righteousness of God is revealed; the righteousness which Christ, who is God as well as man, has wrought out; and which his Father has approved of, accepted, and imputes to his people, and justifies them with; and which word also teaches men to live soberly, righteously, and godly.
Geneva Study BibleMine eyes fail for thy salvation, and for the word of thy righteousness.
Wesley's Notes 119:123 The word - For the performance of thy faithful or merciful promise.
Matthew Henry's Concise Commentary119:121-128 Happy is the man, who, acting upon gospel principles, does justice to all around. Christ our Surety, having paid our debt and ransom, secures all the blessings of salvation to every true believer. The psalmist expects the word of God's righteousness, and no other salvation than what is secured by that word, which cannot fall to the ground. We deserve no favour form God; we are most easy when we cast ourselves upon God's mercy, and refer ourselves to it. If any man resolve to do God's will as his servant, he shall be made to know his testimonies. We must do what we can for the support of religion, and, after all, must beg of God to take the work into his own hands. It is hypocrisy to say we love God's commandments more than our worldly interests. The way of sin is a false way, being directly contrary to God's precepts, which are right: those that love and esteem God's law, hate sin, and will not be reconciled to it.
Matthew Henry's Whole Bible CommentaryVerse 123 David, being oppressed, is here waiting and wishing for the salvation of the Lord, which would make him easy. 1. He cannot but think that it comes slowly: My eyes fail for thy salvation. His eyes were towards it and had been long so. He looked for help from heaven (and we deceive ourselves if we look for it any other way), but it did not come so soon as he expected, so that his eyes began to fail, and he was sometimes ready to despair, and to think that, because the salvation did not come when he looked for it, it would never come. It is often the infirmity even of good men to be weary of waiting God's time when their time has elapsed. 2. Yet he cannot hope that it comes surely; for he expects the word of God's righteousness, and no other salvation than what is secured by that word, which cannot fall to the ground because it is a word of righteousness. Though our eyes fail, yet God's word does not, and therefore those that build upon it, though now discouraged, shall in due time see his salvation. | 
