Generosity is a prominent characteristic of God's favored people. Consider Abraham, Sarah, Lot, Rebekah, Jacob...

When Eliezer arrived at Laban's home in Haran, Laban recognized that the man was wealthy and welcomed him into his house, but didn't do anything for him. Eliezer had to care for his own camels and men.

Contrast Ephrom (who sold the cave to Abraham), Laban, and Rebekah. Ephrom feigned generosity in order to assimilate Abraham. Laban feigned generosity in order to get some reward from Eliezer and as long as it didn't cost him anything. Rebekah, on the other hand, was generous with no expectation of reward.

Genesis 24