God's providential plan

Genesis 45:1-28
Joseph said to his brothers, "I am Joseph! Is my father still alive?" But his brothers could not answer him, for they were dismayed at his presence.
Joseph said to his brothers, "Come near to me, please. I am your brother, Joseph, whom you sod into Egypt. And now do not be distressed or angry with yourselves because you sold me here, for God sent me before you to preserve life."
When the report was heard in Pharaoh's house. "Joseph's brothers have come," it pleased Pharaoh and his servants.
When they told Jacob all the words of Joseph, which he had said to them, and when he saw the wagons that Joseph had sent to carry him, the spirit of their father Jacob revived. And Israel said, "It is enough; Joseph my son is still alive. I will go and see him before I die."
Why?
"Not you ... But God." There is no resentment in Joseph's heart: all that has happened has been part of God's providential(天賜) plan. The slavery he suffered was to save lives.
In times of famine, nomads(游牧民族) from Palestine are known to have been allowed pasturage in the eastern delta.
Under suffering Joseph was following the words of God and do the right things.
How?
The slavery Joseph suffered was to save lives of his household, all of these are the God's providential plan. Praise to the Lord!