Psalms 148:7

Considering that this earth, and the atmosphere that surrounds it, are the very sediment of the universe, it concerns us to enquire after those considerations that may be of use to reconcile us to our place in it; and I know none more likely than this (next to the visit which the Son of God once made to it), that even in this world, dark and as bad as it is, God is praised: Praise you the Lord from the earth, Psa 148:7. As the rays of the sun, which are darted directly from heaven, reflect back (though more weakly) from the earth, so should the praises of God, with which this cold and infected world should be warmed and perfumed. I. Even those creatures that are not dignified with the powers of reason are summoned into this concert, because God may be glorified in them, Psa 148:7-10. Let the dragons or whales, that sport themselves in the mighty waters (Psa 104:26), dance before the Lord, to his glory, who largely proves his own omnipotence by his dominion over the leviathan or whale, Job 41:1, etc. All deeps, and their inhabitants, praise God - the sea, and the animals there - the bowels of the earth, and the animals there. Out of the depths God may be praised as well as prayed unto.

— Matthew Henry's Concise Commentary (public domain)

The call on the earth, as opposed to heaven, includes seas or depths, whose inhabitants the dragon, as one of the largest (on leviathan, see on Psa 104:26), is selected to represent. The most destructive and ungovernable agents of inanimate nature are introduced.

— Jamieson-Fausset-Brown Commentary (public domain)