The glory of the LORD shall endure for ever: the LORD shall rejoice in his works.

Wesley's Notes

104:31 Rejoice - Thus God advances the glory of his wisdom and power and goodness, in upholding the works of his hands from generation to generation, and he takes pleasure in the preservation of his works, as also in his reflection upon these works of his providence.

King James Translators' Notes

endure: Heb. be

Jamieson-Fausset-Brown Bible Commentary

31-34. While God could equally glorify His power in destruction, that He does it in preservation is of His rich goodness and mercy, so that we may well spend our lives in grateful praise, honoring to Him, and delightful to pious hearts (Ps 147:1).

Matthew Henry's Concise Commentary

104:31-35 Man's glory is fading; God's glory is everlasting: creatures change, but with the Creator there is no variableness. And if mediation on the glories of creation be so sweet to the soul, what greater glory appears to the enlightened mind, when contemplating the great work of redemption! There alone can a sinner perceive ground of confidence and joy in God. While he with pleasure upholds all, governs all, and rejoices in all his works, let our souls, touched by his grace, meditate on and praise him.