Moses Returns to Egypt

18 Then Moses went back to Jethro his father-in-law and said to him, “Let me return to my own people in Egypt to see if any of them are still alive.” Jethro said, “Go, and I wish you well.”
References for Exodus 4:18
      19 Now the LORD had said to Moses in Midian, “Go back to Egypt, for all those who wanted to kill you are dead.”
      References for Exodus 4:19
      20 So Moses took his wife and sons, put them on a donkey and started back to Egypt. And he took the staff of God in his hand.
      References for Exodus 4:20
      21 The LORD said to Moses, “When you return to Egypt, see that you perform before Pharaoh all the wonders I have given you the power to do. But I will harden his heart so that he will not let the people go.
      22 Then say to Pharaoh, ‘This is what the LORD says: Israel is my firstborn son,
      23 and I told you, “Let my son go, so he may worship me.” But you refused to let him go; so I will kill your firstborn son.’ ”