Exodus 11:5HEB:אֲשֶׁ֖ר אַחַ֣ר הָרֵחָ֑יִם וְכֹ֖ל בְּכ֥וֹרNAS: is behind the millstones; allKJV: that [is] behind the mill; and all the firstbornINT: who is behind the millstones all the firstborn