drunken - (see on Jer 13:12; Jer 25:17). Intoxicated with the cup of divine wrath, so as to be in helpless distraction.
magnified ... against ... Lord - boasted arrogantly against God’s people, that whereas Israel was fallen, Moab remained flourishing.
wallow in ... vomit - following up the image of a drunken man, that is, shall be so afflicted by God’s wrath as to disgorge all his past pride, riches, and vainglory, and fall in his shameful abasement.
he also ... derision - He in his disaster shall be an object of derision to us, as we in ours have been to him (Jer 48:27). Retribution in kind.