Charles Ellicott Commentary Numbers 13:8

"Of the tribe of Ephraim, Hoshea the son of Nun." — Numbers 13:8 (ASV)

Of the tribe of Ephraim.— It has been supposed that there is some displacement of the text in this verse. Thus far the order of the tribes is the same as in Numbers 1:5-8. After Issachar, Zebulun (the sixth son of Leah) would naturally follow, as in Numbers 1:9, and Ephraim and Manasseh would naturally be connected, as in Numbers 1:10. This supposition is supported by the occurrence of the name of Joseph in Numbers 13:7 and Numbers 13:11. The order of the remaining four tribes is the same as in Numbers 1, except that the tribe of Naphtali is placed before, instead of after, that of Gad.