Deuteronomy 25:13

13 You must not have in your bag different stone weights,
Heb “a stone and a stone.” The repetition of the singular noun here expresses diversity, as the following phrase indicates. See IBHS 116 #7.2.3c.
a heavy and a light one.
Heb “a large and a small,” but since the issue is the weight, “a heavy and a light one” conveys the idea better in English.
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