Numbers 31:24

וְכִבַּסְתֶּם בִּגְדֵיכֶם בַּיּוֹם הַשְּׁבִיעִי וּטְהַרְתֶּם וְאַחַר תָּבֹאוּ אֶל-הַמַּחֲנֶה

King James Version (KJV)

You must wash your clothes on the seventh day, and you shall be clean. And afterward you may come into the camp.

Modern English

You shall wash your clothes on the seventh day, and you shall be clean. Afterward you shall come into the camp.”