“When you divide the land by lot as an inheritance, you are to set aside a portion for the LORD, a holy portion of the land 25,000 cubits long and 20,000 cubits wide. This entire tract of land will be holy.
God sets apart land for His sanctuary first, before the tribes receive their shares, because what is given to support worship and religion sanctifies the whole; it is the first-fruits that make the lump holy. The priests' portion is fixed and measured so the sanctuary cannot devour the rest of the land, teaching us that giving for God's work and the ministry's support is an act of piety that brings perpetual blessing.
AI summary
Commenting on Ezekiel 45:1-8
Moreover, when ye shall divide by lot the land, for inheritance,.... This is not to be understood literally of the division of the land of Israel; which agrees not with the division of it begun by Moses, and finished by Joshua, upon his conquest of it, and the introduction of the people of Israel into it; nor was such a division as this made when...
Moreover, when ye shall divide by lot the land for inheritance, ye shall offer an oblation to the LORD, an holy portion of the land: the length [shall be] the length of five and twenty thousand [reeds], and the breadth [shall be] ten thousand. This [shall be] holy in all its borders on every side.