1 Now these are the kings of the land, which the children of Israel smote, and possessed their land on the other side Jordan toward the rising of the sun, from the river Arnon unto mount Hermon, and all the plain on the east: 2 Sihon king of the Amorites, who dwelt in Heshbon, and ruled from Aroer, which is upon the bank of the river Arnon, and from the middle of the river, and from half Gilead, even unto the river Jabbok, which is the border of the children of Ammon; 3 And from the plain to the sea of Chinneroth on the east, and unto the sea of the plain, even the salt sea on the east, the way to Beth-jeshimoth; and from the south, under Ashdoth-pisgah: 4 And the coast of Og king of Bashan, which was of the remnant of the giants, that dwelt at Ashtaroth and at Edrei, 5 And reigned in mount Hermon, and in Salcah, and in all Bashan, unto the border of the Geshurites and the Maachathites, and half Gilead, the border of Sihon king of Heshbon. 6 Them did Moses the servant of the LORD and the children of Israel smite: and Moses the servant of the LORD gave it for a possession unto the Reubenites, and the Gadites, and the half tribe of Manasseh. 7 And these are the kings of the country which Joshua and the children of Israel smote on this side Jordan on the west, from Baal-gad in the valley of Lebanon even unto the mount Halak, that goeth up to Seir; which Joshua gave unto the tribes of Israel for a possession according to their divisions; 8 In the mountains, and in the valleys, and in the plains, and in the springs, and in the wilderness, and in the south country; the Hittites, the Amorites, and the Canaanites, the Perizzites, the Hivites, and the Jebusites: 9 The king of Jericho, one; the king of Ai, which is beside Bethel, one; 10 The king of Jerusalem, one; the king of Hebron, one; 11 The king of Jarmuth, one; the king of Lachish, one; 12 The king of Eglon, one; the king of Gezer, one; 13 The king of Debir, one; the king of Geder, one; 14 The king of Hormah, one; the king of Arad, one; 15 The king of Libnah, one; the king of Adullam, one; 16 The king of Makkedah, one; the king of Bethel, one; 17 The king of Tappuah, one; the king of Hepher, one; 18 The king of Aphek, one; the king of Lasharon, one; 19 The king of Madon, one; the king of Hazor, one; 20 The king of Shimron-meron, one; the king of Achshaph, one; 21 The king of Taanach, one; the king of Megiddo, one; 22 The king of Kedesh, one; the king of Jokneam of Carmel, one; 23 The king of Dor in the coast of Dor, one; the king of the nations of Gilgal, one; 24 The king of Tirzah, one: all the kings thirty and one.
[AD 253] Origen of Alexandria on Joshua 12:1-24
And if “a wise man shall understand the words from his own mouth and shall hear knowledge on his lips,” we must either declare rashly that the prophets were not wise, if they have not understood “the words from their own mouth,” or admit that the prophets were wise, because they have received what is correct and true and have understood “the words from their own mouth” and borne knowledge on their lips. It is clear that Moses saw in his mind the truth of the law and the allegorical meanings related to the anagogical sense of the stories he recorded, and that Joshua understood the true distribution of land which took place after the overthrow of the twenty-nine kings, since he could see better than us that the things accomplished through himself were shadows of certain realities.

[AD 373] Ephrem the Syrian on Joshua 12:1-24
Whoever believes in me will also do the works which I do, and will do even greater ones. And where is this word which he said, “The disciple is not greater than his master” [illustrated]? For example, Moses killed only three kings, but Joshua killed thirty. [Moses] persevered in prayer, made supplication, but did not enter [the promised land]. It was Joshua rather who entered and shared out the inheritance. Likewise, Samuel was greater than Eli, and Elisha received a double portion of his master’s spirit after his ascension, like the Lord our Savior, for his disciples effected twice through their signs.