Hear my voice, O Jehovah! according to thy mercy. In the first place he declares, that the goodness of God was the only ground of his hope of being heard by him. Whatever blessings the saints may plead for in prayer, their opening argument must be the free and unmerited grace of God. Nor is the term judgments [1] in the second clause to be taken in a different sense. As God has revealed his goodness in his word, his word is the source from which we must derive our assurance of his goodness. The Prophet, then, sensible that he had need of the divine mercy, betook himself directly to the word, in which God, sweetly alluring men to himself, promises that his grace will be ready and open for all. That each, therefore, may be confidently persuaded that God will be merciful to him in particular, let him learn from the example of the Prophet to entreat God to show himself such as he has promised to be. Some expound the word judgments by manner or custom; [2] because, God's usual way is to deal graciously with all his people. I would not altogether reject this exposition; but I think it is harsh and foreign to the scope of the text, while the meaning which I have adduced comes out very naturally. Moreover, he desires to be quickened, to testify that even in the, midst of life he is dead, except in so far as he is sustained by the power of God. And assuredly, all who are duly acquainted with their own infirmity, esteeming their life as nothing, will crave to be quickened every moment. It is also to be added, that God often so exercised his servant, that with good reason he might send up his prayers, as it were, out of the sepulcher, to be restored from death to life.

Footnotes

1 - By "judgments," Calvin means "God's Word," as the reader will observe from what follows.

2 - Walford translates, "Revive me, e Jehovah! according to thy wonted manner."

Hear my voice, according unto thy loving-kindness - According to thy mercy; thy goodness. Let that be the rule in answering me; not my deserts, or even the fervour of my prayers. We can desire no better rule in answer to our prayers.
O Lord, quicken me - Give me life; cause me truly to live. See the notes at Psalm 119:40.
According to thy judgment - Thy law as a rule of judgment; thy revealed truth, with all its gracious promises.

Hear my voice according unto thy lovingkindness,.... Not according to his own merits and deserts, or works of righteousness done by him, for the sake of which he did not present his supplications to God; nor according to his love to him, which often waxed cold, and he in a poor lukewarm frame of spirit; but according to the lovingkindness of God, which is always the same, and which is a great encouragement to faith and hope in prayer; that since God is gracious and merciful, kind and bountiful, plenteous in mercy, and ready to forgive, on a throne of grace, and full of love, yea, love itself, invariably the same, he will hear, and saints shall find grace and mercy to help them in time of need;
O Lord, quicken me according to thy judgment; either according to his word of promise, or according to his manner and wonted method he used towards his people; see Psalm 119:25; This is a prayer, not for the first work of quickening grace, or the first implantation of a principle of spiritual life, which the psalmist had had an experience of; but for the reviving of the work and principle in him, that he might be refreshed and comforted, and be animated and stirred up to a lively exercise of grace and performance of duty: finding himself in dead and lifeless frames, and not able to quicken himself.

quicken me--revive my heart according to those principles of justice, founded on Thine own nature, and revealed in Thy law, which specially set forth Thy mercy to the humble as well as justice to the wicked (compare Psalm 119:30).

Judgment - According to thy word.