54 And ye shall take for yourselves the land as an inheritance by lot according to your families: to the many ye shall increase their inheritance, and to the few thou shalt diminish their inheritance: where the lot falleth to him, there shall be each man's [inheritance]; according to the tribes of your fathers shall ye take for yourselves the inheritance.

Matthew Henry's Commentary on Numbers 33:54

Commentary on Numbers 33:50-56

(Read Numbers 33:50-56)

Now that they were to pass over Jordan, they were entering again into temptation to follow idols; and they are threatened that, if they spared either the idols or the idolaters, their sin would certainly be their punishment. They would foster vipers in their own bosoms. The remnant of the Canaanites, if they made any peace with them, though but for a time, would be pricks in their eyes, and thorns in their sides. We must expect trouble and affliction from whatever sin we indulge; that which we are willing should tempt us, will vex us. It was intended that the Canaanites should be put out of the land; but if the Israelites learned their wicked ways, they also would be put out. Let us hear this and fear. If we do not drive out sin, sin will drive us out. If we are not the death of our lusts, our lusts will be the death of our souls.