CHAPTER 12 May 26 
The Conquered Kings on the East of the Jordan
Now these are the kings of the land whom the children of Israel struck, and possessed their land beyond the Jordan toward the sunrise, from the valley of the Arnon to Mount Hermon, and all the Arabah eastward: 2Sihon king of the Amorites, who lived in Heshbon and ruled from Aroer, which is on the edge of the valley of the Arnon, and the middle of the valley, and half Gilead, even to the river Jabbok, the border of the children of Ammon; 3and the Arabah to the sea of Chinneroth, eastward, and to the sea of the Arabah, even the Salt Sea, eastward, the way to Beth Jeshimoth; and on the south, under the slopes of Pisgah: 4and the border of Og king of Bashan, of the remnant of the Rephaim, who lived at Ashtaroth and at Edrei, 5and ruled in Mount Hermon, and in Salecah, and in all Bashan, to the border of the Geshurites and the Maacathites, and half Gilead, the border of Sihon king of Heshbon. 6Moses the servant of Yahweh and the children of Israel struck them. Moses the servant of Yahweh gave it for a possession to the Reubenites, the Gadites and the half-tribe of Manasseh. 
The Conquered Kings on the West of the Jordan 
7These are the kings of the land whom Joshua and the children of Israel struck beyond the Jordan westward, from Baal Gad in the valley of Lebanon even to Mount Halak that goes up to Seir. Joshua gave it to the tribes of Israel for a possession according to their divisions; 8in the mountains, and in the lowland, and in the Arabah, and in the slopes, and in the wilderness, and in the South; the Hittite, the Amorite, and the Canaanite, the Perizzite, the Hivite and the Jebusite: 9the king of Jericho, one; the king of Ai, which is beside Bethel, one; 10the king of Jerusalem, one; the king of Hebron, one; 11the king of Jarmuth, one; the king of Lachish, one; 12the king of Eglon, one; the king of Gezer, one; 13the king of Debir, one; the king of Geder, one; 14the king of Hormah, one; the king of Arad, one; 15the king of Libnah, one; the king of Adullam, one; 16the king of Makkedah, one; the king of Bethel, one; 17the king of Tappuah, one; the king of Hepher, one; 18the king of Aphek, one; the king of Lassharon, one; 19the king of Madon, one; the king of Hazor, one; 20the king of Shimron Meron, one; the king of Achshaph, one; 21the king of Taanach, one; the king of Megiddo, one; 22the king of Kedesh, one; the king of Jokneam in Carmel, one; 23the king of Dor in the height of Dor, one; the king of Goiim in Gilgal, one; 24the king of Tirzah, one: all the kings thirty-one.

Commentary

12:1,7 The kings of the land – The Hebrew word eretz refers to both the land promised to Abraham, and to the whole planet. When we read of “the kings of the earth / land” in Revelation, these likewise refer to the rulers within the territory promised to Abraham, from the Nile to the Euphrates.
12:7 Joshua gave it to the tribes of Israel for a possession according to their divisions- The comment of Ps. 136:17,22 is that the 31 kings were slain as an act of God’s grace, in order to give the land to Israel for a heritage or possession. Israel didn’t deserve these victories, they were by God’s grace. 
12:8 The mountains… the slopes… the wilderness- The conquests of Joshua-Jesus were extensive. Yet when Israel took the land, they settled just in the fertile areas and let the Canaanites live in those infertile areas, rather than completely destroy them (Jud. 1:34). We too can as it were take possession of those parts of the Kingdom life which are convenient to us, rather than in the spirit of Jesus-Joshua take full possession 
12:9 The list of kings which follow appear to be in the order in which they were defeated. Not all these battles and victories are recorded, in the same way as not all the struggles and victories of Jesus are known or perceived by us.