King James Version (KJV)
So persecute them with thy tempest, and make them afraid with thy storm.
Modern English
so may you pursue them with your tempest and terrify them with your hurricane!
Hebrew
כֵּ֤ן תִּרְדְּפֵ֗ם בְּ֭סַעֲרֶךָ וּבְסוּפָתְךָ֥ תְבַהֲלֵֽם׃
ken tirdpem bsaʿareka vbsvpatka tbahalem