Exodus 3:1 says, Now Moses kept the flock of Jethro his father in law, the priest of Midian: and he led the flock to the backside of the desert, and came to the mountain of God, even to Horeb.  Moses was still keeping his father-in-law's sheep.  He was safe and evidently content.  Sometimes, we may be safe and content in life, but we may also not be doing what God has called us to do.  Verse two declares  And the angel of the LORD appeared unto him in a flame of fire out of the midst of a bush: and he looked, and, behold, the bush burned with fire, and the bush was not consumed.  Angels of God have appeared to people in many different ways, sometimes as strangers walking along and sometimes in dreams.  With Moses, the angel appeared to him in the midst of a burning bush that was not being consumed.  Verse three states, And Moses said, I will now turn aside, and see this great sight, why the bush is not burnt.  This got Moses' attention.  When God speaks to us, whether through an angel or by the Holy Spirit, He must first get our attention.  We will never hear God if we are so consumed with the world that we are not willing to listen for His voice, until He comes in judgment.  Then, everyone will hear, but it will be too late.  Verse four declares, And when the LORD saw that he turned aside to see, God called unto him out of the midst of the bush, and said, Moses, Moses. And he said, Here am I.  When God saw that Moses was paying attention, then He spoke to him.  Had Moses walked on by, he would have missed God's call to him.  If we ignore it when God calls to us, we will miss the blessings that He has in store for us.  This was a personal call to Moses, just as God calls each individual to a personal relationship with Him today.  Moses replied, "Here am I."  This can be our only response to God's call today if we are to accept salvation through faith in Christ.  Verse five declares,  And he said, Draw not nigh hither: put off thy shoes from off thy feet, for the place whereon thou standest is holy ground.  God told Moses not to come closer and to remove his shoes because he was walking on holy ground.  This was the same ground that Moses had walked on before, but the difference was that Moses was now in the presence of God.  As followers of Christ, indwelled by the Holy Spirit, wherever we go we are in the presence of God and should act reverently toward God.  Verse six adds, Moreover he said, I am the God of thy father, the God of Abraham, the God of Isaac, and the God of Jacob. And Moses hid his face; for he was afraid to look upon God.  When Moses realized that God was talking to him, he hid his face.  Fortunately, when we accept Christ as our Savior and Lord, we no longer have to fear God and attempt to hide our face from Him.  Of course, this would be impossible to do anyway.  Verse seven continues, And the LORD said, I have surely seen the affliction of my people which are in Egypt, and have heard their cry by reason of their taskmasters; for I know their sorrows; God told Moses why He was speaking to Him.  God was not here simply to establish a relationship with Moses, but because He had a purpose for Moses to fulfill.  Although salvation is for our restoration to God, it is not simply for our benefit, but comes with a call to help those around us in bondage to sin.  Verse eight goes on, And I am come down to deliver them out of the hand of the Egyptians, and to bring them up out of that land unto a good land and a large, unto a land flowing with milk and honey; unto the place of the Canaanites, and the Hittites, and the Amorites, and the Perizzites, and the Hivites, and the Jebusites.  God told Moses that He had heard the suffering of His people in Egypt and He was ready to deliver them to the promised land.  Moses may have been wondering what that had to do with him, just as we may sometimes wonder what delivering people to salvation today has to do with us.  Just as God was going to work through Moses then, He works through His people today.  Verse nine continues, Now therefore, behold, the cry of the children of Israel is come unto me: and I have also seen the oppression wherewith the Egyptians oppress them. Then verse ten concludes, Come now therefore, and I will send thee unto Pharaoh, that thou mayest bring forth my people the children of Israel out of Egypt. God told Moses why He had spoken to him, just as He will tell us His purpose when He speaks to us today.  Whether thrugh a burning bush or a still small voice, God will make His will for us known if we will only listen.  As followers of Christ, we can be certain that God has purpose for us.