For he hath founded it upon the seas - That is, the earth, or the habitable world. The ground of the claim to the earth and all that it contains, which is here asserted, is the fact that God had created it, or “founded” it. The language used here - “he hath founded it,” that is, he has laid the foundation of it, “upon the seas” and “the floods” - is in accordance with the usual mode of speaking of the earth in the Scriptures as laid upon a foundation - as a house is raised on a firm foundation. See the notes at Job 38:6. As the earth appeared to be surrounded by water, it was natural to speak of it as “founded” also upon the waters. There is probably an allusion here to the statement in Genesis 1:9-10, where the waters are said to have been so gathered together that the dry land appeared. Above all the waters the earth was established, so as to become the abode of plants, animals, and man.
And established it upon the floods - The streams; the torrents. The earth has been elevated above them, so as to be a residence for animals and for men. The essential thought is, that this earth has become what it is by the fact that God has founded it; and, therefore, what it produces belongs of right to Him.