So Lot chose for himself all the Jordan Valley, and Lot journeyed east. Thus they separated from each other.
We have here the choice that Lot made when he parted from Abram. Upon this occasion, one would have expected, 1. That he should have expressed an unwillingness to part from Abram, and that, at least, he should have done it with reluctancy. 2. That he should have been so civil as to have remitted the choice back again to Abram.
Commenting on Genesis 13:10-13
Then Lot chose him all the plain of Jordan,.... Because of its good pasturage, and because of the plenty of water there; the want of both which was the inconvenience he had laboured under, and had occasioned the strife between his and Abram's servants: and Lot journeyed east, or "eastward"; for the plain of Jordan, and that part of the land on which Sodom and...
Then Lot chose him all the plain--a choice excellent from a worldly point of view, but most inexpedient for his best interests. He seems, though a good man, to have been too much under the influence of a selfish and covetous spirit: and how many, alas! imperil the good of their souls for the prospect of worldly advantage.