King James Version (KJV)
Afterward he measured a thousand; {and it was} a river that I could not pass over: for the waters were risen, waters to swim in, a river that could not be passed over. {waters to...: Heb. waters of swimming}
Modern English
Afterward he measured one thousand; and it was a river that I could not pass through; for the waters had risen, waters to swim in, a river that could not be walked through.
Hebrew
וַיָּ֣מָד אֶ֔לֶף נַ֕חַל אֲשֶׁ֥ר לֹֽא־אוּכַ֖ל לַעֲבֹ֑ר כִּֽי־גָא֤וּ הַמַּ֙יִם֙ מֵ֣י שָׂ֔חוּ נַ֖חַל אֲשֶׁ֥ר לֹֽא־יֵעָבֵֽר׃
vayamad ʾelef naḥal ʾasher loʾ-ʾvkal laʿabor kiy-gaʾv hamayim mey shaḥv naḥal ʾasher loʾ-yeʿaber