Komentaryo sa Mga Bilang 26:52: Or HaChaim & Abarbanel

וידבר ה׳ אל משה לאמור. G'd spoke to Moses to say. Moses was to tell Joshua and the elders that Joshua would lead them into the land to take possession of it. The word לאמור in this instance does not refer to the people at large. If this were not so, the word לאלה in the next verse would not make sense.

To the large [tribe], increase. According to Rashi they gave a larger portion to the bigger tribe, and yet it was all by means of lots. The ones causing the inheritance were those who went out of Egypt. According to Ramban the Land was divided into twelve equal portions, and the tribe was divided into families according to their size. It seems to me that the lottery would inform in which region of the Land the tribe’s inheritance would be, and afterwards Yehoshua and the elders would make the boundary according to the number of persons in the tribe. This is the meaning of (Bamidbar 33:54): “To whomever the lottery [system] ordains, it shall be his.” And this was the complaint of the tribe of Menashe to Yehoshua — that he gave them too little.