2 For thy steadfast love was established for ever, thy faithfulness is firm as the heavens. 3 Thou hast said, "I have made a covenant with my chosen one, I have sworn to David my servant: 4 'I will establish your descendants for ever, and build your throne for all generations.'" [Selah]
Matthew Henry's Commentary on Psalm 89:2-4
Commentary on Psalm 89:1-4
(Read Psalm 89:1-4)
Though our expectations may be disappointed, yet God's promises are established in the heavens, in his eternal counsels; they are out of the reach of opposers in hell and earth. And faith in the boundless mercy and everlasting truth of God, may bring comfort even in the deepest trials.