Matthew Poole and continuators on Psalms 104:30

30 Thou sendest forth thy spirit , they are created : & thou renewest the face of the earth .

Either 1. that spirit by which they live, which is called the spirit of a beast, Eccles. 3. 11. which is called their breath or spirit (for the word is the same there and here) v. 29. and here may be called Gods spirit, because it was given and preserved by him. Or rather 2. thy quickning spirit: for here seems to be an opposition between their spirit, v. 29. and thy spirit here, and this latter is mentioned as the creating or productive cause of the former. And this may be understood either 1. of the Holy Ghost; to whom, no less than to the Father and the Son, the work of Creation is ascribed, Iob 33. 4. Psal. 33. 6. or rather 2. that quickning power of God by which he produceth life in the Creatures from time to time. For he speaks not here of the first Creation, but of the continued and repeated production of living Creatures.

Either 1. the same living Creatures which were languishing and dying are strangely revived and restored; which may not unfitly be called a creation, as that word is sometimes used, because it is in a manner the giving of a new life and being to a Creature. Or 2. other living Creatures are produced or generated; the word created being taken in its largest sence for the production of things out of indisposed matter by second Causes, as it is used, Isa. 41. 20. and 54. 16. &c.

And thus by thy wise and wonderful Providence thou preservest the succession of living Creatures upon the Earth, which otherwise would be desolate or without Inhabitants.