25. Ye … have both spoken with … mouths, and fulfilled with … hand—ironical praise. They had pleaded their obligation to fulfil their vows, in excuse for their idolatry. He answers, no one can accuse you of unsteadiness as to your idolatrous vows; but steadfastness towards God ought to have prevented you from making, or, when made, from keeping such vows.
ye will surely accomplish … vows—Jeremiah hereby gives them up to their own fatal obstinacy.