Genesis 13:14-16 ESV
The Lord said to Abram, after Lot had separated from him, “Lift up your eyes and look from the place where you are, northward and southward and eastward and westward, for all the land that you see I will give to you and to your offspring forever. I will make your offspring as the dust of the earth, so that if one can count the dust of the earth, your offspring also can be counted.
And he brought him outside and said, “Look toward heaven, and number the stars, if you are able to number them.” Then he said to him, “So shall your offspring be.” And he believed the Lord, and he counted it to him as righteousness.
One might interpret these passages as two types of descendants. One that will be of the dust of the earth and the other in heaven as stars in the night sky.
This would align with the distinction between the inheritance by Israel of the promised land and the inheritance of the body of Christ which will be the Lord. Our hope is kept in heaven.
1 Peter 1:3-5
Blessed be the God and Father of our Lord Jesus Christ! According to his great mercy, he has caused us to be born again to a living hope through the resurrection of Jesus Christ from the dead, to an inheritance that is imperishable, undefiled, and unfading, kept in heaven for you, who by God's power are being guarded through faith for a salvation ready to be revealed in the last time.