Rashi on Numbers
'על פי ה With his consent; i.e. that He did not prevent him from doing so. ...
Sforno on Numbers
כלם אנשים, men of valour. The word איש occurs in the sense of “man of valour” both in Samuel I 26,15 and in Kings I 2,2.
Tur HaArokh
כולם אנשים, “all of them distinguished people.” They were well known for their prowess. The word איש appears in that context in Kings I 2,2 וחזקת והיית לאיש.