Exodus 4:19  says, And the LORD said unto Moses in Midian, Go, return into Egypt: for all the men are dead which sought thy life.  God told Moses to return to Egypt and that the men who sought to kill him were now dead.  God reassured Moses that he was not in as much danger as he thought he might be.   When God sends us somewhere, we can rest assured in His security.  God could have sent Moses at any time, but He chose to wait until the time was best for him to go.  Vere twenty states, And Moses took his wife and his sons, and set them upon an ass, and he returned to the land of Egypt: and Moses took the rod of God in his hand.  Moses took his family and the rod of God and returned to Egypt.  He may have offered excuses why he wasn't the one to go, but he went.  Moses also took with him the rod that God had provided him with.  When we go to do something for God today, we go with God's provision of the Holy Spirit dwelling in us.  Verse twenty-one says, And the LORD said unto Moses, When thou goest to return into Egypt, see that thou do all those wonders before Pharaoh, which I have put in thine hand: but I will harden his heart, that he shall not let the people go.  God told Moses to go before Pharaoh and perform the  wonders that He had shown him.  Then, God said He would harden Pharaoh's heart so he would not let the people go.  I believe that this means that God knew that Pharaoh would harden his heart from his own will.  If God was indeed behind Pharaoh hardening his heart, then we cannot blame Pharaoh for his actions.  Verse twenty-two adds, And thou shalt say unto Pharaoh, Thus saith the LORD, Israel is my son, even my firstborn:  Moses was to tell Pharaoh about the special relationship that He had with Israel.  As followers of Christ today, we have that same relationship with God.  Through faith in Christ, we are the children of God.  Verse twenty-three continues, And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, even thy firstborn.  God told Moses to tell Pharaoh what would happen if he did not let Israel go.  God said He would slay Pharaoh's first born.  We today, when sharing the gospel, can tell people of an even worse fate if they refuse to accept Christ, and that is everlasting separation from God.  Verse twenty-four says, And it came to pass by the way in the inn, that the LORD met him, and sought to kill him.  This is a strange verse.  If Moses was on his way to do God's will, then why would God try to kill him?  Also, if God really wanted to kill Moses, then there would have been no trying, but Moses would have been dead.  Verse twenty-five declares, Then Zipporah took a sharp stone, and cut off the foreskin of her son, and cast it at his feet, and said, Surely a bloody husband art thou to me.  Zipporah circumcised their son.  She was not an Israelite, but she was taking action for her son to be in compliance with God's directive to His people.  I believe that Moses and his family had to be identified as a part of God's people.  We today must be identified with God's people.  Verse twenty-six states, So he let him go: then she said, A bloody husband thou art, because of the circumcision.  It would seem that Zipporah was not happy with Moses, but she had done what she felt was necessary.  Even if we aren't happy about sacrifices that we may have to make to help others come to God, we still need to make them.  I believe that God was behind Zipporah's actions, just as He should be behind ours today if we are acting on His behalf.  Verse twenty-seven declares, And the LORD said to Aaron, Go into the wilderness to meet Moses. And he went, and met him in the mount of God, and kissed him.  God sent Aaron to meet Moses in the wilderness.  We might say that when God calls us to Him that we meet Him in the wilderness of sin.  Verse twenty-eight states, And Moses told Aaron all the words of the LORD who had sent him, and all the signs which he had commanded him.  Moses shared with Aaron all that God had said and shown to him.  All we can do today when we meet others in the world is to tell and show them what God has done for us.  Verse twenty-nine says, And Moses and Aaron went and gathered together all the elders of the children of Israel:  The first thing Moses and Aaron did was gather the elders of Israel together.  What they were about to do would affect all the people of Israel, so they needed to know what Moses and Aaron were doing.  As followers of Christ, we need to realize that our actions are never done for our benefit alone.  We are all a part of God's family and should be aware that our actions for God are interrelated.  Verse thirty adds, And Aaron spake all the words which the LORD had spoken unto Moses, and did the signs in the sight of the people.  Aaron told the people what God had said and showed them the signs that God had provided as proof that Moses and Aaron were acting by God's authority.  As followers of Christ, we today do not have a physical sign to prove that we are God's people, but we do have the Holy Spirit to guide us to the best way to reach others.  Verse thirty-one concludes, And the people believed: and when they heard that the LORD had visited the children of Israel, and that he had looked upon their affliction, then they bowed their heads and worshipped.  The first step in reaching the lost of the world is for God's people to truly believe in Him and to worship Him.