Numbers 13:3-7

And Moses by the commandment of the LORD sent them from the wilderness of Paran: all those men were heads of the children of Israel.

And these were their names: of the tribe of Reuben, Shammua the son of Zaccur.

Of the tribe of Simeon, Shaphat the son of Hori.

Of the tribe of Judah, Caleb the son of Jephunneh.

Of the tribe of Issachar, Igal the son of Joseph.