Sforno on Numbers 10:35/ספורנו על במדבר י׳:ל״ה

1ויהי בנסוע הארון proceeding to enter the holy Land;

2קומה ה' ויפוצו אויביך, if the people had not insisted on dispatching the spies the march would have been proceeding unopposed, the enemies scattering before the armies of G’d without offering resistance. Isaiah 17,9 phrases it thus: “In that day their fortress cities shall be like the deserted sites which the Choresh and the Amir abandoned because of the Israelites, and there shall be desolation.”

3וינוסו מפניך, lest the Israelites would wipe them out.