Genesis 15:5-8

5The Lord took Abram outside. He said to Abram, ‘Look up at the sky. Count the stars. They are too many for you to count!’ Then God said, ‘That is how many descendants you will have.’

6Abram believed the Lord. As a result, the Lord accepted Abram as right with him.

7The Lord also said to Abram, ‘I am the Lord. I brought you out of Ur of the Chaldeans to bring you to this land. I am giving it to you. It will belong to you.’

8But Abram said, ‘Almighty Lord, how can I be sure that this land will belong to me?’