Their possessions were too great for them to remain together; the land where they were staying could not support them both because of their livestock.
NIV
For their great flocks and herds and possessions [which they had collected] made it impossible for them to dwell together; the land in which they were strangers could not support them because of their livestock.
AMP
For their riches were more than that they might dwell together; and the land wherein they were strangers could not bear them because of their cattle.
KJV