Genesis 13:12

Isn’t the whole land before you? Please separate yourself from me. If you go to the left hand, then I will go to the right. Or if you go to the right hand, then I will go to the left.”

Lot lifted up his eyes, and saw all the plain of the Jordan, that it was well-watered everywhere, before the LORD destroyed Sodom and Gomorrah, like the garden of the LORD, like the land of Egypt, as you go to Zoar.

So Lot chose the Plain of the Jordan for himself. Lot traveled east, and they separated themselves from one another.

Now the men of Sodom were exceedingly wicked and sinners against the LORD.

The LORD said to Abram, after Lot was separated from him, “Now, lift up your eyes, and look from the place where you are, northward and southward and eastward and westward,

for I will give all the land which you see to you and to your offspring forever.