King James Version (KJV)
Behold, all ye yourselves have seen it; why then are ye thus altogether vain?
Modern English
Behold, all of you have seen it yourselves; why then have you become altogether vain?
Hebrew
הֵ֤ן אַתֶּ֣ם כֻּלְּכֶ֣ם חֲזִיתֶ֑ם וְלָ֝מָּ֗ה זֶ֥ה הֶ֝בֶל תֶּהְבָּֽלוּ׃
hen ʾatem kulkem ḥaziytem vlamah zeh hebel tehbalv