Psalm 73:8

They are corrupt, and speak wickedly concerning oppression: they speak loftily.

They are corrupt,.... In themselves, in their principles, and in their practices, being shapen and conceived in sin, and born of the flesh; and are corrupters, or "corrupt" themselves, and their ways, and also others by their corrupt speech, evil communications, and bad examples: or "they consume away"; like smoke, or into it, as Psalms 37:20 or as wax melteth at the fire, Psalms 68:2, where the same word is used as here: or "they cause to consume away" {o}; "they melt or dissolve others"; they consume them, and waste their estates by their oppression and violence; they make their hearts to melt with their threatening and terrifying words; or they make them dissolute in their lives by keeping them company:

and speak wickedly concerning oppression; they speak oppression and revolt, threaten with it, Isaiah 59:13, and speak in vindication of it, and in a boasting glorying manner; so Arama; which is speaking wickedly concerning it:

they speak loftily: proudly, arrogantly, in a haughty and imperious manner: or "from on high" {p}; as if they were in heaven, and above all creatures, and even God himself; and as if what they said were oracles, and to be received as such, without any scruple and hesitation. Thus Pharaoh, Sennacherib, and Nebuchadnezzar spake, Exodus 5:2 and the little horn, or antichrist, Daniel 7:20.

{o} wqymy "dissolutos reddunt", Vatablus; "reddent se dissolutos", Montanus; "faciunt tabescere", Cocceius, Gejerus, Michaelis.
{p} Mwrmm "a sublimi", Musculus, Tigurine version, Junius & Tremellius, Piscator; "ex alto", Cocceius, Gejerus, Michaelis.