Great are Your mercies, O LORD; Revive me according to Your ordinances.
NASB95
Great is your mercy, O LORD; give me life according to your rules.
ESV
Great are thy tender mercies, O LORD: quicken me according to thy judgments.
KJV

It is most cheering to pass from judgment to mercy—from the awful state of the wicked, to adore the mercies of God to His own people. We were naturally no better than they. The most eminent saved sinner looks on himself with wonder, "Is not this a brand plucked out of the fire?" Never will he lose the remembrance, "Who makes you to differ?" To mercy—rich mercy alone—we trace the distinction between those that are "quickened," and those that remain "dead in trespasses and sins."

But let us mark the features of this mercy. How great in extent! Estimate its greatness by the infinite debt which it blots out—the eternal ruin from which it saves—the heavenly crown to which it raises. Trace it to the mind of God—that first eternal purpose of mercy, which set us apart for His glory. Mark it in that "time of love," when His mercy rescued us from Satan, sin, death, and hell, and drew us to Himself. As soon might we span the arch of heaven, as fully grasp the greatness of His mercy. And then how tender is it in its exercise! Such was the first beam of mercy that "visited us." Such has been the continued display. So natural, as from a Father. So yearning, "as one whom his mother comforts!" Such a multitude of those tender mercies! The overflowing stream follows us through every step of our wilderness journey. The blessing "compasses us about," abounds towards us, keeps us steadfast, or restores us when wandering, and will preserve us to the end. Happy are we—not in the general perception—not in the hearsay report—but in the experimental enjoyment of it. "Bless the Lord, O my soul, and all that is within me, bless His holy name." But what poor returns have we made for this infinite love! Surely the petition for quickening grace suits us well. This was the constant burden of David's prayer. For he was not like many professors, who can maintain their assurance in a lower and careless walk. No, he was a believer of a very high standard; desirous not only of proving his title to the blessing, but of living in its habitual and active enjoyment.

Often as this petition has been brought before us, in the course of this Psalm, it is too important ever to be passed over. Let us at this time use it for the purpose of individual self-inquiry. In what respects do I need quickening grace? Are my views of sin, and especially of the sin of my own heart, slight and superficial? Do they fail in producing humility, abasement, tenderness of conscience, circumspection of conduct? If it be so—Quicken me, O my God! Does my apprehension of a Savior's love serve to embitter sin to me? to crucify sin in me, to warm and enliven my heart with love to Him, and zeal in His service? If I am convicted of coldness to such a Savior, and sluggishness in such a service, I need to pray—O Lord, quicken me! And how do I find it with regard to prayer itself? Are not my prayers general—unfrequent—wandering? Is not my service too often constrained, a forced duty, rather than a privilege and delight? O Lord, quicken me!

Yet many Christians, through a mistaken perception, know not when they have received the blessing. They have looked for it in strong and sensible excitement; and in defect of this they sink into despondency. Whereas the solid influence is independent of sensations, and consists in a tender sensibility of sin, a spiritual appetite for the gospel, active energy in Christian duties, and continual progress in heavenly exercises. But under no circumstances must the evil of a dead and drooping state be lightly thought of; obscuring as it does the difference between the believer and the worldling, or rather between the believer and the formalist. O believer, you have great need to carry your complaint again and again unto the Lord! 'Quicken me—quicken me—according to Your judgments—according to those gracious promises, which are the method of Your proceedings, and the rule of Your dispensations of grace.' You cannot be too earnest to welcome the breathings of the Spirit, or too cautious, that your indolence resists not His Divine impression. When He quickens you with His influence, do you quicken Him with your supplications, "Awake, O north wind; and come, you south: blow upon my garden, that the spices thereof may flow out." Persuade—entreat—constrain His stay. Enlivened by His energy, how happy, and in your own sphere how useful, a member of the Church of Christ you may be found! Your soul will be invigorated—your graces strengthened—and your affections elevated—in humble, cheerful, steady dependence upon the Savior, and in daily renewed devotedness to His service. The more the spiritual life is thus "exercised unto godliness, the more delightfully will you realize the active service and everlasting praise, which will constitute the perfection of heavenly enjoyment."

This verse is exceedingly like verse one hundred and forty-nine, and yet it is no vain repetition. There is such a difference in the main idea, that the one verse stands out distinct from the other. In the first case he mentions his prayer, but leaves the method of its accomplishment with the wisdom or judgment of God; while here he pleads no prayer of his own, but simply the mercies of the Lord, and begs to be quickened by judgments rather than to be left to spiritual lethargy. We may take it for granted that an inspired author is never so short of thoughts as to be obliged to repeat himself: where we think we have a repetition of the same idea in this psalm we are misled by our neglect of careful study. Each verse is a distinct pearl. Each blade of grass in this field has its own drop of heavenly dew.

"Great are your tender mercies, O LORD." Here the Psalmist pleads the largeness of God's mercy, the immensity of his tender love; yes, he speaks of mercies—mercies many, mercies tender, mercies great; and with the glorious Jehovah he makes this a plea for his one leading prayer, the prayer for quickening. Quickening is a great and tender mercy; and it is many mercies in one. Shall One so greatly good permit his servant to die? Will not One so tender breathe new life into him?

"Quicken me according to your judgments." A measure of awakening comes with the judgments of God; they are startling and arousing; and hence the believer's quickening thereby. David would have every severe stroke sanctified to his benefit, as well as every tender mercy. The first clause of this verse may run, "Many," or "manifold are your compassions, O Jehovah." This he remembers in connection with the "many persecutors" of whom he will speak in the next verse. By all these many mercies he pleads for enlivening grace, and thus he has many strings to his bow. We shall never be short of arguments if we draw them from God himself, and urge both his mercies and his judgments as reasons for our quickening.