וַיִּשְׁלַ֨ח אֹתָ֥ם מֹשֶׁ֛ה מִמִּדְבַּ֥ר פָּארָ֖ן עַל־פִּ֣י יְהוָ֑ה כֻּלָּ֣ם אֲנָשִׁ֔ים רָאשֵׁ֥י בְנֵֽי־יִשְׂרָאֵ֖ל הֵֽמָּה׃
And Moses sent them from the wilderness of Paran according to the commandment of the LORD; all of them men who were heads of the children of Israel.
Read halakhic rulings (Jewish law) on Numbers 13:3 from the Mishneh Torah and classical halakhic sources, free online.