4 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. 5 I, and all the people who are with me, will approach to the city. It shall happen, when they come out against us, as at the first, that we will flee before them. 6 They will come out after us, until we have drawn them away from the city; for they will say, ‘They flee before us, like the first time.’ So we will flee before them, 7 and you shall rise up from the ambush, and take possession of the city; for Yahweh your God will deliver it into your hand. 8 It shall be, when you have seized on the city, that you shall set the city on fire. You shall do this according to the word of Yahweh. Behold, I have commanded you.” 9 Joshua sent them out; and they went to set up the ambush, and stayed between Bethel and Ai, on the west side of Ai; but Joshua stayed among the people that night. 10 Joshua rose up early in the morning, mustered the people, and went up, he and the elders of Israel, before the people to Ai. 11 All the people, even the men of war who were with him, went up, and drew near, and came before the city, and encamped on the north side of Ai. Now there was a valley between him and Ai. 12 He took about five thousand men, and set them in ambush between Bethel and Ai, on the west side of the city. 13 So they set the people, even all the army who was on the north of the city, and their ambush on the west of the city; and Joshua went that night into the midst of the valley. 14 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. 15 Joshua and all Israel made as if they were beaten before them, and fled by the way of the wilderness. 16 All the people who were in the city were called together to pursue after them. They pursued Joshua, and were drawn away from the city. 17 There was not a man left in Ai or Beth El who didn’t go out after Israel. They left the city open, and pursued Israel. 18 Yahweh said to Joshua, “Stretch out the javelin that is in your hand toward Ai, for I will give it into your hand.”

Joshua stretched out the javelin that was in his hand toward the city. 19 The ambush arose quickly out of their place, and they ran as soon as he had stretched out his hand, and entered into the city, and took it. They hurried and set the city on fire. 20 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. 21 When Joshua and all Israel saw that the ambush had taken the city, and that the smoke of the city ascended, then they turned again, and killed the men of Ai. 22 The others came out of the city against them, so they were in the midst of Israel, some on this side, and some on that side. They struck them, so that they let none of them remain or escape.

23 They captured the king of Ai alive, and brought him to Joshua. 24 It happened, when Israel had made an end of killing all the inhabitants of Ai in the field, in the wilderness in which they pursued them, and they had all fallen by the edge of the sword, until they were consumed, that all Israel returned to Ai, and struck it with the edge of the sword. 25 All that fell that day, both of men and women, were twelve thousand, even all the men of Ai. 26 For Joshua didn’t draw back his hand, with which he stretched out the javelin, until he had utterly destroyed all the inhabitants of Ai.

Matthew Henry's Commentary on Joshua 8:4-26

Commentary on Joshua 8:3-22

(Read Joshua 8:3-22)

Observe Joshua's conduct and prudence. Those that would maintain their spiritual conflicts must not love their ease. Probably he went into the valley alone, to pray to God for a blessing, and he did not seek in vain. He never drew back till the work was done. Those that have stretched out their hands against their spiritual enemies, must never draw them back.

Commentary on Joshua 8:23-29

(Read Joshua 8:23-29)

God, the righteous Judge, had sentenced the Canaanites for their wickedness; the Israelites only executed his doom. None of their conduct can be drawn into an example for others. Especial reason no doubt there was for this severity to the king of Ai; it is likely he had been notoriously wicked and vile, and a blasphemer of the God of Israel.