'Behind' in the Bible

You shall do to Ai and her king as you did to Jericho and her king, except its spoil and its livestock, you shall take for a plunder for yourselves. Set an ambush for the city behind it."

He commanded them, saying, "Behold, you shall lie in ambush against the city, behind the city. Don't go very far from the city, but all of you be ready.

It happened, when the king of Ai saw it, that they hurried and rose up early, and the men of the city went out against Israel to battle, he and all his people, at the time appointed, before the Arabah; but he didn't know that there was an ambush against him behind the city.

When the men of Ai looked behind them, they saw, and behold, the smoke of the city ascended up to heaven, and they had no power to flee this way or that way. The people who fled to the wilderness turned back on the pursuers.