Psalms 59:7

Behold they belch out with their mouth. The noisy creatures are so remarkable in their way, that attention is called to them with a behold. Ecce homines, might we not say, Ecce canes! Their malicious speech gushes from them as from a bubbling fountain. The wicked are voluble in slander; their vocabulary of abuse is copious, and as detestable as it is abundant. What torrents of wrathful imprecation will they pour on the godly! They need no prompters, their feelings force for themselves their own vent, and fashion their own expressions. Swords are in their lips. They speak daggers. Their words pierce like rapiers, and cleave like cutlasses. As the cushion of a lions's paw conceals his claw, so their soft ruby lips contain bloody words. For who, say they, doth hear? They are free from all restraint, they fear no God in heaven, and the government on earth is with them. When men have none to call them to account, there is no accounting for what they will do. He who neither fears God nor regards man sets out on errands of oppression with gusto, and uses language concerning it of the most atrociously cruel sort. David must have been in a singular plight when he could hear the foul talk and hideous braggings of Saul's black guards around the house. After the style in which a Cavalier would have cursed a Puritan, or Claverhouse a Coventanter, the Saulites swore at the upstarts whom the king's majesty had sent them to arrest. David called them dogs, and no doubt a pretty pack they were, a cursed cursing company of curs. When they said, "Who doth hear?" God was listening, and this David knew, and therefore took courage.

They belch out with their mouth - They use the lowest insult, the basest abuse. They deal in sarcasm, ridicule, slander, and lies.

Behold, they belch out with their mouth - The word rendered “belch out” means properly to boil forth; to gush out, to flow; and then, to pour forth copiously, or in a running stream, as a fountain does. Hence, the word means also to pour out “words” - words that flow freely - words of folly, abuse, or reproach. Pro 15:2, “the mouth of fools poureth out (Margin, belcheth or babbleth) foolishness.” Pro 15:28, “the mouth of the wicked poureth out evil things;” that is, “gushes over” with wicked things - as a fountain overflows. In this place, the word means that the enemies of David who were in pursuit of his life, poured out reproaches and threatenings like a gushing fountain. Swords are in their lips - Their words are as sharp swords. See the notes at Psa 57:4. For who, say they, doth hear? - That is, no one hears who will be able to punish us. They dread no man; and they have no fear of God. Compare the notes at Psa 10:11. The words “say they” are, however, supplied here by the translators, and are not in the original; and the language “may” be understood as that of David himself, “as if” no one heard; that is, It is no wonder that they thus pour out words of reproach, for who “is” there to hear and to punish them? The former interpretation, however, is to be preferred. The language expresses the feelings of the enemies of David, who indulged freely in language of abuse and reproach “as if” there were none to hear.