KJV : It was foursquare <07251> (8803); they made <06213> (8804) the breastplate <02833> double <03717> (8803): a span <02239> [was] the length <0753> thereof, and a span <02239> the breadth <07341> thereof, [being] doubled <03717> (8803).

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NASB : It was square; they made the breastpiece folded double, a span long and a span wide when folded double.

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NASB# : It was square<7251>; they made<6213> the breastpiece<2833> folded<3717> double<3717>, a span<2239> long<753> and a span<2239> wide<7341> when folded<3717> double<3717>.