John Calvin Commentary Psalms 145:10

"All thy works shall give thanks unto thee, O Jehovah; And thy saints shall bless thee." — Psalms 145:10 (ASV)

All thy works, and so forth. Though many would suppress God’s praises, observing a wicked silence regarding them, David declares that they shine forth everywhere, appear of themselves, and are sounded, as it were, by the very mute creatures. He then assigns the special work of declaring them to believers, who have eyes to perceive God’s works, and know that they cannot be employed better than in celebrating his mercies.

What is added — they shall speak the glory of thy kingdom — I consider this to refer only to believers. If anyone is inclined to think that these words rather apply to God’s creatures universally, I would not object to that view. But the particular kind of speaking or teaching to which David here refers applies only to saints.

Accordingly, I have retained the future tense of the verbs, rather than the optative mood, as others have done. In using the term kingdom, David suggests that the manifestation of God’s works tends to bring the whole world into a state of order and subject it to his government.

He insists upon the excellence of this kingdom, so that people may know that things are to be regarded as in disorder and confusion unless God alone is acknowledged supreme. He denies it to be transitory, like all earthly kingdoms, asserting that it will endure forever. And to call our attention more particularly to its everlasting nature, he exclaims in admiration and addresses God directly.