Psalms 119:123

Mine 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 Psalms 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.