Sarai said to Abram, “The Lord has not allowed me to have children. So go with my servant Hagar. I will accept the child that is born from her like it is my own.”
One day the older daughter said to the younger, “Everywhere on the earth, men and women marry {and have a family}. But our father is old and there are no men around here to give us children.
Isaac’s wife could not have children. So Isaac prayed to the Lord for his wife. The Lord heard Isaac’s prayer. And the Lord allowed Rebekah to become pregnant.
If the slave is not married, the master can give him a wife. If that wife gives birth to sons or daughters, then she and her children will belong to the master. After the slave is finished with his years of service, then he will be made free.