Psalms 59:12

(12) For the sin . . .—As the text stands, it runs: Sin of their mouth, word of their lips, and they are taken in their pride, and cursing and lying they say; where some would supply a copula, “The sin of their mouth is the word of their lips,” which seems tautological nonsense. But, perhaps, we should take the accusative as adverb of instrument: By the sin of their mouth, by the word of their lips, let them even be taken in their pride.

And for cursing and lying which they speak.—That is, let their own malignant slanders, their blasphemous lies, recoil on their own heads; a frequent thought in the Psalms.