Cities of Refuge and Their Required Specifications

"And you shall designate for yourselves cities" - Could these be large or small cities, either from the cities that the Canaanites built or from the cities that the Israelites will build? It is stated, "cities," indicating both large and small cities, not smaller than the cities that the Canaanites built or than the cities that the Israelites will build upon entering the land. Since it is stated, "to flee there," one might think that a person may determine the location of the city of refuge on their own. Therefore, it is stated, "there," indicating a designated place. It is stated here, "there," and it is stated there, "there" - just as the manner of designating the city of refuge there is based on the words of the Torah, so too, the manner of designating the city of refuge here is based on the words of the Torah. Alternatively, could the cities of refuge be designated based on the discretion of the court forever? Therefore, it is stated, "there," to teach that the first designation is based on the words of the Torah, and the subsequent designations are based on the court's discretion....