King James Version (KJV)
He that dasheth in pieces is come up before thy face: keep the munition, watch the way, make {thy} loins strong, fortify {thy} power mightily. {He...: or, The disperser, or, hammer}
Modern English
He who dashes in pieces has come up against you. Keep the fortress! Watch the way! Strengthen your waist! Fortify your power mightily!
Hebrew
הִנֵּ֨ה עַל־הֶהָרִ֜ים רַגְלֵ֤י מְבַשֵּׂר֙ מַשְׁמִ֣יעַ שָׁל֔וֹם חָגִּ֧י יְהוּדָ֛ה חַגַּ֖יִךְ שַׁלְּמִ֣י נְדָרָ֑יִךְ כִּי֩ לֹ֨א יוֹסִ֥יף ע֛וֹד לעבור־לַֽעֲבָר־בָּ֥ךְ בְּלִיַּ֖עַל כֻּלֹּ֥ה נִכְרָֽת׃
hineh ʿal-hehariym ragley mbasher mashmiyʿa shalvom ḥagiy yhvdah ḥagayik shalmiy ndarayik kiy loʾ yvosiyf ʿvod lʿbvr-laʿabar-bak bliyaʿal kuloh nikrat