Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
KJV

Joshua 21:6

And the children of Gershon had by lot out of the families of the tribe of Issachar, and out of the tribe of Asher, and out of the tribe of Naphtali, and out of the half tribe of Manasseh in Bashan, thirteen cities.

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