Genesis 15:1-4 NLT

1 Afterward the LORD spoke to Abram in a vision and said to him, "Do not be afraid, Abram, for I will protect you, and your reward will be great."
2 But Abram replied, "O Sovereign LORD, what good are all your blessings when I don't even have a son? Since I don't have a son, Eliezer of Damascus, a servant in my household, will inherit all my wealth.
3 You have given me no children, so one of my servants will have to be my heir."
4 Then the LORD said to him, "No, your servant will not be your heir, for you will have a son of your own to inherit everything I am giving you."