Genesis15

After this, the word of the LORD came to Abram in a vision:

"Do not be afraid, Abram.  I am your shield, your very great reward."

But Abram said, "O Soverein LORD, what can you give me since I remain childless and the one who will inherit my estate is Eliezer of Damascus?"  And Abram said, "You have given me no children; so a servant in my household will be my heir."

Then the world of the LORD came to him:  "This man will not be your heir, but a son coming from your own body will be your heir."  He took him outside and said, "Look up at the heavens and count the star-if indeed you can count them."  Then he said to him, "So shall your offspring be."

Abram believed the LORD, and he credited it to him as rightousness.

He also said to him, "I am the LORD, who brought you out of Ur of the Chadeans to give you this land to take possession of it."

But Abram said, "O Sovereign LORD, how can I know that I will gain possession of it?"

So the LORD said to him, :Bring me a heifer, a goat and a ram, each three years old, along with a dove and a young pigeon."

Abram brought all these to him, cut them in two and arranged the halves opposit each other; the birds, however, he did not cut in half.  Then birds of pray came down on the carcasses, but Abram drove them away.

As the sun was setting, Abram fell into a deep sleep, and a thick adn dreadful darkness came over him, "Know for certain that your descendants will be strangers in a country not their own, and they will be enslaved and mistreated four hundred years.  But I will punish the nation they serve as slaves, and afterward they will come out with great possessions.  You, however, will go to your fathers in peace and be buried at a good old age.  In the fourth generation your descendants will come back here, for the sin of the Amorites has not yet reached its full measure."

When the sun had set and darkness had fallen, a smoking firepot with a blazing torch appeared and passed between the pieces.  On that day the LORD made a covenant with Abram and said, "To your descenant I give this land, from the river of Egyps to the Kenites, Kenizzites, Kadmonites, Hitties, Perizzites, Rephaites, Amorites, Canaanites, Girgashites and Jebusites."