Adam Clarke on Jeremiah 3:2

As the Arabian in the wilderness - They were as fully intent on the practice of their idolatry as the Arab in the desert is in lying in wait to plunder the caravans. Where they have not cover to lie in ambush, they scatter themselves about, and run hither and thither, raising themselves up on their saddles to see if they can discover, by smoke, dust, or other token, the approach of any travelers.