Genesis 13:11
Then Lot chose him all the plain of Jordan; and Lot journeyed east: and they separated themselves the one from the other.
Cross-references
Genesis 13:9 is Abram's offer to let Lot choose first — this verse records Lot's response, taking the well-watered Jordan Valley for himself.
Genesis 13:14 records God's promise to Abram immediately after Lot departs — as Lot takes the land he wants, God pledges all of it to Abram's descendants.
Genesis 19:17 shows the consequence of this choice: Lot must flee for his life when Sodom is destroyed, revealing where his journey toward the valley ultimately led.
In Genesis 36:7, Esau and Jacob part for the same reason: 'their possessions were too great for them to dwell together,' directly echoing this scene.
In Genesis 36:6, Esau also separates from his brother — the same dynamic of growing possessions driving relatives apart that prompted Lot's choice here.