Joshua 15:1

The lot — For the general understanding of this, it must be known That casting lots was transacted with great seriousness and solemnity, in God's presence, with prayer and appeal to him for the decision of the matter. That although exact survey of this land was not taken 'till Joshua 18:4, yet there was, and must needs be a general description of it, and a division thereof into nine parts and an half; which, as far as they could guess, were equal either in quantity or quality. That the lot did not at this time so unchangeably determine each tribe, that their portion could neither be increased or diminished; as is manifest, because after Judah's lot was fixed, Simeon's lot was taken out of it, Joshua 19:9, though after the land was more distinctly known and surveyed, it is likely the bounds were more certain and fixed. That the lot determined only in general what part of the land belonged to each tribe, but left the particulars to be determined by Joshua and Eleazar. For the manner of this, it is probably conceived, that there was two pots, into one of which were put the names of all the tribes, each in a distinct paper, and into the other the names of each portion described; then Eleazar or some other person, drew out first the name of one of the tribes out of one pot, and then the name of one portion out of the other, and that portion was appropriated to that tribe. And with respect to these pots, in the bottom of which the papers lay, these lots are often said to come up, or come forth. Of Judah — Whose lot came out first by God's disposition, as a note of his preeminency above his brethren. Of Edom — Which lay south — east from Judah's portion. Judah and Joseph were the two sons of Jacob, on whom Reuben's forfeited birthright devolved. Judah had the dominion entailed upon him, and Joseph the double portion. Therefore these two tribes are first seated: and on them the other seven attended.