Charles H. Spurgeon on Psalms 148:4

Praise him, ye heavens of heavens. By these are meant those regions which are heavens to those who dwell in our heavens; or those most heavenly of abodes where the most choice of spirits dwell. As the highest of the highest, so the best of the best are to praise the Lord. If we could climb as much above the heavens as the heavens are above the earth, we could still cry out to all around us, "Praise ye the Lord." There can be none so great and high as to be above praising Jehovah. And ye waters that be above the heavens. Let the clouds roll up volumes of adoration. Let the sea above roar, and the fulness thereof, at the presence of Jehovah, the God of Israel. There is something of mystery about these supposed reservoirs of water; but let them be what they may, and as they may, they shall give glory to the Lord our God. Let the most unknown and perplexing phenomena take up their parts in the universal praise.