King James Version (KJV)
For the LORD shall rise up as {in} mount Perazim, he shall be wroth as {in} the valley of Gibeon, that he may do his work, his strange work; and bring to pass his act, his strange act.
Modern English
For Yahweh will rise up as on Mount Perazim. He will be angry as in the valley of Gibeon; that he may do his work, his unusual work, and bring to pass his act, his extraordinary act.
Hebrew
כִּ֤י כְהַר־פְּרָצִים֙ יָק֣וּם יְהוָ֔ה כְּעֵ֖מֶק בְּגִבְע֣וֹן יִרְגָּ֑ז לַעֲשׂ֤וֹת מַעֲשֵׂ֙הוּ֙ זָ֣ר מַעֲשֵׂ֔הוּ וְלַֽעֲבֹד֙ עֲבֹ֣דָת֔וֹ נָכְרִיָּ֖ה עֲבֹדָתֽוֹ׃
kiy khar-praṣiym yaqvm yhvah kʿemeq bgibʿvon yirgaz laʿasvot maʿashehv zar maʿashehv vlaʿabod ʿabodatvo nakriyah ʿabodatvo