זאת הארץ אשר תפול לכם בנחלה; the word תפול is used to describe the manner in which lots are drawn, i.e. a die is cast, falls. You will each be assigned your ancestral heritage even before the end of the military campaign resulting in the land’s conquest. The expression נפל in connection with lots is found in Psalms 22,18 as well as in Esther 3,7. The reason why the Torah the word זאת, which at first glance appears to be superfluous, is to tell us that anything conquered outside the boundaries which will now be described is not subject to division by lottery. We find this confirmed by the fact that Moses distributed the lands of Sichon and Og without resorting to any lottery. The reason for this is that those lands do not have the degree of sanctity which is integral to the “Holy Land.” Joshua confirmed this when (Joshua 22,19) he spoke of ואך אם טמאה ארץ אחוזתכם, “even if the land of your inheritance is unclean,” [Joshua denied the right of the two and a half tribes on the east bank to build an altar even if thereby they had meant to add sanctity to the soil they lived on, which was not holy or sacred by definition. Ed.] The major reason why this land could not be distributed by lottery was that the lottery reflected Divine decisions, and G’d would not mix in unless the land concerned was holy by itself.