|Matthew Henry's Concise Commentary|
71:14-24 The psalmist declares that the righteousness of Christ, and the great salvation obtained thereby, shall be the chosen subject of his discourse. Not on a sabbath only, but on every day of the week, of the year, of his life. Not merely at stated returns of solemn devotion, but on every occasion, all the day long. Why will he always dwell on this? Because he knew not the numbers thereof. It is impossible to measure the value or the fulness of these blessings. The righteousness is unspeakable, the salvation everlasting. God will not cast off his grey-headed servants when no longer capable of labouring as they have done. The Lord often strengthens his people in their souls, when nature is sinking into decay. And it is a debt which the old disciples of Christ owe to succeeding generations, to leave behind them a solemn testimony to the advantage of religion, and the truth of God's promises; and especially to the everlasting righteousness of the Redeemer. Assured of deliverance and victory, let us spend our days, while waiting the approach of death, in praising the Holy One of Israel with all our powers. And while speaking of his righteousness, and singing his praises, we shall rise above fears and infirmities, and have earnests of the joys of heaven. The work of redemption ought, above all God's works, to be spoken of by us in our praises. The Lamb that was slain, and has redeemed us to God, is worthy of all blessing and praise.
Verse 21. - Thou shalt increase my greatness, and comfort me on every side. The psalmist feels that the trial now laid upon him is the last - that henceforth his greatness and majesty will increase instead of diminishing, and that God will turn and comfort him (comp. 1 Chronicles 29:28).
Gill's Exposition of the Entire Bible
Thou shalt increase my greatness,.... His temporal greatness, as he did, by crushing the rebellion of his son; returning him to his palace and family; and giving him rest from his enemies all around: and his spiritual greatness, by favouring him with his presence; by shedding abroad his love in his heart; by enlarging his experience; increasing his faith, causing his love to abound, and him to grow in every grace, and in the knowledge of Christ;
and comfort me on every side; by his Spirit, word, and ordinances; by his truths and promises; with his rod and staff; and with mercy, grace, and lovingkindness. The phrase denotes the abundance of comfort, which should come as it were from every quarter, and encompass him about.
Jamieson-Fausset-Brown Bible Commentary
21. increase, &c.—that is, the great things done for me (Ps 71:19; compare Ps 40:5).
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