From the early Church Fathers to now.
1 Catholic · 1 Reformed
“Praise him, ye heavens of heavens: and let all the waters that are above the heavens”
“Of heavens. The highest and most excellent, (Calmet) though not the abode of the angels, which had been specified before. — Heavens, in the clouds. It is not necessary to allow these waters to be above the stars. (Berthier)”
“heavens of heavens--the very highest. waters--clouds, resting above the visible heavens (compare Gen 1:7).”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.