Yehoshua 8:2-4

Orthodox Jewish Bible

² And thou shalt do to Ai and her melech just as thou didst unto Yericho and her melech; only the plunder thereof, and the livestock thereof, shall ye carry off for yourselves. Behind it set thee an ambush for the Ir (city [of Ai]).

³ So Yehoshua arose, and kol Am HaMilchamah, to go up against Ai; and Yehoshua chose out shloshim elef ish gibborei hachayil, and sent them out by lailah.

⁴ And he commanded them, saying, See, ye shall set an ambush against the Ir, even behind the Ir; go not very far from the Ir, but be ye all nekhonim (ready, on alert, set, prepared);