Genesis 13 talks about the splitting up of Abram and his herdsmen, and Lot and his herdsmen. Abram moved from Egypt to the Negev had become very wealthy in livestock, silver, and gold.
3 From the Negev he went from place to place until he came to Bethel, to the place between Bethel and Ai where his tent had been earlier 4 and where he had first built an altar. There Abram called on the name of the LORD.
5 Now Lot, who was moving about with Abram, also had flocks and herds and tents. 6 But the land could not support them while they stayed together, for their possessions were so great that they were not able to stay together. 7 And quarreling arose between Abram's herdsmen and the herdsmen of Lot. The Canaanites and Perizzites were also living in the land at that time.
8 So Abram said to Lot, "Let's not have any quarreling between you and me, or between your herdsmen and mine, for we are brothers. 9 Is not the whole land before you? Let's part company. If you go to the left, I'll go to the right; if you go to the right, I'll go to the left."
10 Lot looked up and saw that the whole plain of the Jordan was well watered, like the garden of the LORD, like the land of Egypt, toward Zoar. (This was before the LORD destroyed Sodom and Gomorrah.) 11 So Lot chose for himself the whole plain of the Jordan and set out toward the east. The two men parted company: 12 Abram lived in the land of Canaan, while Lot lived among the cities of the plain and pitched his tents near Sodom. 13 Now the men of Sodom were wicked and were sinning greatly against the LORD.
14 The LORD said to Abram after Lot had parted from him, "Lift up your eyes from where you are and look north and south, east and west. 15 All the land that you see I will give to you and your offspring [a] forever. 16 I will make your offspring like the dust of the earth, so that if anyone could count the dust, then your offspring could be counted. 17 Go, walk through the length and breadth of the land, for I am giving it to you."
18 So Abram moved his tents and went to live near the great trees of Mamre at Hebron, where he built an altar to the LORD.
Pride was a factor in this whole event. Lot saw the that Jordan and the land of Canaan looked wonderful and chose to go that way, not realizing that the people of Sodom and Gomorrah were very wicked, and that he would be tempted if he went any closer. Abram trusted the Lord who told him that his offspring would be as numerous as the dust of the ground. Our eyes can deceive us, so if we trust in the Lord and not what we see, then we will be blessed by the Lord. For we walk by faith and not by sight.