Charles H. Spurgeon on Psalms 100:3

It is he that made us... we are his. Now, the ground of God's property in all things is his creating of all... Accordingly, you may observe in many scriptures, where the Lord's propriety is asserted, this, as the ground of it, is annexed: Ps 89:11-12, the heavens, the earth, the whole world, and all therein is thine. Why so? "Thou hast founded them." And so are all the regions and quarters of the world, northern and southern, western and eastern; for Tabor was on the west and Hermon on the east; all are thine, for thou hast created them. So sea and land, Ps 95:5. As all things measured by time, so time itself, the measure of all, Ps 74:16-17. "Thou hast made the light, "i.e. the moon for the night and the sun for the day. He lays claim to all the climes of the earth, and all the seasons of the year on this account; he made them. This will be more evident and unquestionable, if we take notice of these particulars:

1. He made all for himself. He was not employed by any to make it for another, for in that case sometimes the maker is not the owner; but the Lord did employ himself in that great work, and for himself did he undertake and finish it. Pr 16:4 Col 1:15-16.

2. He made all things of nothing, either without any matter at all, or without any but what himself had before made of nothing. A potter when he makes an earthenware vessel, if the clay be not his own which he makes it of, he is not the full owner of the vessel, though he formed it: "the form is his, the matter is another's; "but since the Lord made all of nothing, or of such matter as himself had made, all is wholly his, matter and form, all entirely.

3. He made all without the help or concurrence of any other. There was none that assisted him, or did in the least co-operate with him in the work of creation... Those that assist and concur with another in the making of a thing may claim a share in it; but here lies no such claim in this case, where the Lord alone did all, alone made all. All is his only.

4. He upholds all things in the same manner as he created, continues the being of all things in the same way as he gave it. He does it of himself, without other support, without any assistant. All would fall into nothing in a moment, if he did not every moment bear them up. So that all things on this account have still their being from him every moment, and their well-being too, and all the means which conduce to it; and therefore all are his own. David Clarkson.