Psalms 104:4

His angels spirits] read either, 'his angels winds,' or 'winds his messengers' (RV). The former rendering is the more natural, is parallel to that of the next clause, and is adopted in Hebrews 1:7, where the v. is quoted. The latter reading seems to give a simpler sense, but the other is quite intelligible also. As God manifests His own glory in the universe, so He manifests the power of His angels in the winds and the lightning.

7-9. These vv. are parallel to Genesis 1:9; Genesis 1:10. God's command to the waters is conceived as having been uttered in thunder (Psalms 104:7).