Psalms 50:10

For every beast of the forest is mine -All the beasts that roam at large in the wilderness; all that are untamed and unclaimed by man. The idea is, that even if God “needed” such offerings, he was not dependent on them - for the numberless beasts that roamed at large as his own would yield an ample supply. And the cattle upon a thousand hills -This may mean either the cattle that roamed by thousands on the hills, or the cattle on numberless hills. The Hebrew will bear either construction. The former is most likely to be the meaning. The allusion is probably to the animals that were pastured in great numbers on the hills, and that were claimed by men.