Verse 90. - Thy faithfulness is unto all generations. God "keepeth his promise forever" (Psalm 146:6, Prayer-book Version). If his "Word" generally is unchanging, so especially must be his promises. Thou hast established the earth, and it abideth. Even God's physical laws have a character of perpetuity about them. "The constancy of God in his works is an argument for the faithfulness of God in his Word" (Chalmers).

119:89-96 The settling of God's word in heaven, is opposed to the changes and revolutions of the earth. And the engagements of God's covenant are established more firmly than the earth itself. All the creatures answer the ends of their creation: shall man, who alone is endued with reason, be the only unprofitable burden of the earth? We may make the Bible a pleasant companion at any time. But the word, without the grace of God, would not quicken us. See the best help for bad memories, namely, good affections; and though the exact words be lost, if the meaning remain, that is well. I am thine, not my own, not the world's; save me from sin, save me from ruin. The Lord will keep the man in peace, whose mind is stayed on him. It is poor perfection which one sees and end of. Such are all things in this world, which pass for perfections. The glory of man is but as the flower of the grass. The psalmist had seen the fulness of the word of God, and its sufficiency. The word of the Lord reaches to all cases, to all times. It will take us from all confidence in man, or in our own wisdom, strength, and righteousness. Thus shall we seek comfort and happiness from Christ alone.Thy faithfulness is unto all generations,.... Or "to generation and generation" (y); to his people in every age, fulfilling his word, supplying their wants, giving them new mercies every morning and every day; never leaving and forsaking them, according to his promise: his faithfulness never fails, it endures for ever, and is exceeding great and large indeed; see Lamentations 3:23;

thou hast established the earth, and it abideth: laid the foundation of it so firm and sure, that it cannot be removed: and though one generation has passed after another, the earth abides where it was, and will do for ever; and as firm and stable, and never failing, is the faithfulness of God, which this is designed to illustrate. So some supply it, "as thou hast established the earth", &c. (z); see Psalm 24:2.

(y) "in generationem et generationem", Gejerus; "in aetatem et aetatem", Cocceius. (z) "Quemadmodum vel sicut fundasti", Gejerus.