Genesis 45:3-8
45:3 Joseph said to his brothers, “I am Joseph [imagine the shock his brothers must have felt at hearing these words]! Is my father [Jacob] still living [an indication that Joseph’s affection for his father was still strong]?” But his brothers were not able to answer him, because they were terrified [perhaps because they realized that Joseph had the authority and power to exact revenge] at his presence.
45:4 Then Joseph said to his brothers, “Come close to me.” When they had done so, he said, “I am your brother Joseph, the one you sold into Egypt [this detail validated Joseph’s claim]!

45:5 And now, do not be distressed and do not be angry with yourselves for selling me here, because [note that Joseph was a bigger picture person…] it was to save lives that God sent me ahead of you [Joseph understood God’s providence].

45:6 For two years now there has been famine in the land, and for the next five years [as indicated by Pharaoh’s dreams (cf. Gen. 41:1-7)] there will not be plowing and reaping.

45:7 But God [used the evil intentions of Joseph’s brothers to accomplish His purposes] sent me ahead of you to preserve for you a remnant on earth and to save your lives by a great deliverance.

45:8 “So then, it was not you who sent me here, but God [these words must have alleviated much anxiety]. He made me father to Pharaoh [or Pharaoh’s counselor], lord of his entire household and ruler of all [indicates the scope of Joseph’s authority] Egypt.

Genesis 45:25-28
45:25 So they went up out of Egypt and came to their father Jacob in the land of Canaan.

45:26 They told him, “Joseph is still alive! In fact, he is [at the present time] ruler of all Egypt.” Jacob was stunned [he probably went limp; or to use an old Texas expression, “he was slack-jawed”]; he did not believe them.

45:27 But when they told him everything [cf. Gen. 45:9-13] Joseph had said to them, and when he saw the carts [tangible evidence of Joseph’s concern for his family] Joseph had sent to carry him back, the spirit of their father Jacob revived [he felt better or came to life].

45:28 And Israel [Jacob] said, “I’m convinced! My son Joseph is still alive [the fact that Joseph was “alive” was more important to him than Joseph’s wealth or status in Egypt]. I will go and see him before I die.”