The heaven - Hebrew, “The heavens.”
Even the heavens are the Lord‘s - A more literal and correct rendering of this would be, “The heavens are heavens for Jehovah.” That is, he has reserved the heavens as a home for himself, or as his special possession and home. Compare Isaiah 66:1; Matthew 5:34; Acts 7:49.
But the earth - He propared earth for the abode of man; he has placed man upon it to cultivate it; he has given its fruits and productions to man, to be held and enjoyed by man; he has made all on earth subject to man - the dwellers in the air, the land, and the waters. All this he has given to man; not to the angels. Earth is the home of man, the birth-place of man; the place where he lives, where he shows the result of his toil, his skill, and his ingenuity; the place where he builds houses, bridges, monuments, works of art; the place where he prepares for another state of existence; the place where he dies, and is buried. It is, as formed by the Creator, a beautiful home outfitted for mankind; how much more beautiful would it be, if man never defiled or desolated it by sin! how happy an abode would it have been if sin had never entered it!