Adam Clarke's Bible Commentary Verse 6. Stretched out the earth above the waters ] Or, upon the waters.
This seems to refer to a central abyss of waters, the existence of which has not been yet disproved.
Matthew Henry Commentary
Verses 1-9 - Forgetful as we are, things must be often repeated to us. By "mercy" we understand the Lord's disposition to save those whom sin has rendere miserable and vile, and all the provision he has made for the redemption of sinners by Jesus Christ. The counsels of this mercy have been from everlasting, and the effects of it will endure for ever, to all who are interested in it. The Lord continues equally ready to sho mercy to all who seek for it, and this is the source of all our hop and comfort.
Original Hebrew לרקע7554 הארץ776 על5921 המים4325 כי3588 לעולם5769 חסדו׃2617