There are hundreds of Old Testament prophesies about Christ. Again and
  again, God has us look at the lives of the Old Testament fathers and the words
  of the prophets to learn about the coming of Christ.
  Luther sparkles in *volume eight of his Genesis
  Commentary when he writes about the following verses in Genesis 45:1-8:
  
    "Genesis 45:1 Then Joseph could not refrain himself before all them
    that stood by him; and he cried, Cause every man to go out from me. And
    there stood no man with him, while Joseph made himself known unto his
    brethren.
    2 And he wept aloud: and the Egyptians and the house of Pharaoh heard.
    3 And Joseph said unto his brethren, I am Joseph; doth my father yet live?
    And his brethren could not answer him; for they were troubled at his
    presence.
    4 And Joseph said unto his brethren, Come near to me, I pray you. And they
    came near. And he said, I am Joseph your brother, whom ye sold into Egypt.
    5 Now therefore be not grieved, nor angry with yourselves, that ye sold me
    hither: for God did send me before you to preserve life.
    6 For these two years hath the famine been in the land: and yet there are
    five years, in the which there shall neither be earing nor harvest.
    7 And God sent me before you to preserve you a posterity in the earth, and
    to save your lives by a great deliverance.
    8 So now it was not you that sent me hither, but God: and he hath made me a
    father to Pharaoh, and lord of all his house, and a ruler throughout all the
    land of Egypt."
  
  We only present here a few of Luther's observations on the 45 pages he
  writes about this text.
  Luther says when we look at the life of the saints like Joseph, we see
  what all Christians must endure.
  "Therefore we [Christians] must be troubled and humbled, if not by
  bloodshed and imprisonment, as the saintly martyrs suffered, at least through
  spiritual trials, sorrow, grief, and anguish of heart. Otherwise we shall
  perish in our sins. For the flesh is corrupt, filled with poison, leprous, and
  has need of a physician to counteract that rottenness by means of cross,
  martyrdom, sadness, confusion, and disgrace. These, you see, are the medicines
  with which God purges away sin.
  Holy Scripture is full of such examples. They show that the saints must
  endure. For when they are not subjected to trials, they forget their spiritual
  exercises. Then they pray, believe, and praise rather lazily. On the other
  hand, they cry out, groan, and complain when misfortunes come, and thus they
  are disciplined and instructed in the Word, as Isaiah says (Is. 28:19):
  'Vexation gives understanding.'" (Page 7)
  Luther compares Joseph to Jesus saying, "I am Joseph, I am your
  Savior."
  "Accordingly, I give this warning in order that we may not look at
  this manifestation of Joseph only in passing but may consider the great
  affection of the heart by which both Joseph and his brothers were benumbed. I
  would not know how I should have reacted when he said: 'I am Joseph.' Nor do
  they know. What will happen, then, when our Lord and Savior JESUS Christ
  comes, who also disciplines us in various ways in this life and allows us to
  be troubled, scourged, killed, etc.? What great joy there will be after that
  sudden and unexpected change, since we previously felt that He was a very
  harsh tyrant who wanted to destroy everyone in a trice! Then He will say:
  "I am Joseph; I am your Savior." I cannot explain this revelation of
  Joseph worthily; but it must be read and pondered often, . . ." (Page 15)
  From Luther's comparison of Joseph with Jesus we come to the following
  conclusions. As you read the list if you have more to add, please send
  them in a reply.
  
    - Joseph's brothers were bewildered by his visions of his great authority
      while Christ's disciples never understood the prophecies of His death and
      resurrection.
 
    - Joseph and Jesus were both betrayed and sold; Joseph for 20 pieces of
      silver and Christ for 30 pieces of silver.
 
    - Joseph's coat was dipped in goat's blood; Christ's robe was covered with
      his own blood.
 
    - Joseph was thrown into a pit while Christ was placed in a tomb.
 
    - Joseph's father was told Joseph was dead while was Christ killed by the
      will of both man and God.
 
    - While in room by themselves Joseph's eleven brothers discover he is
      alive. While in a room by themselves Christ's eleven disciples discover
      has risen from the dead.
 
    - Joseph saves his brothers from starvation while Christ saves all His
      brothers and sisters from sin.
 
    - Joseph brings his brothers to repentance while Christ removes sin from
      us.
 
    - Joseph absolves his brothers while Christ pays for our sin.
 
    - Joseph has bread for everyone who comes Egypt while Christ is the bread
      of life for the whole world.
 
    - Joseph leads all Egypt to be owned by Pharaoh while Christ has purchased
      the entire world and places it under God the Father.
 
    - God sends Joseph to preserve life while Christ gives us eternal life.
 
    - Joseph saves the church in Egypt while Christ saves the Church in
      heaven.
 
    - Joseph announces that God used Him for great deliverance while Christ
      has delivered us from sin, death, and hell and given us eternal life.
 
    - God used Joseph's evil brothers to make Joseph the ruler of Egypt as He
      used the evil Chief Priests, Scribes, and Pharisees to make Jesus Lord of
      Lords and King of Kings.
 
  
  Luther makes some remarkable comments about the church while discussing
  this account.
  "Thus today the emperor, the pope, and the Mohammedans live and remain
  in this world for no other reason than for the sake of the church, the Word,
  and the sacraments. When these have been removed, they will perish at once, as
  Daniel 12:7 testifies: 'When the shattering of the power of the holy people
  comes to an end, all these things would be accomplished.' But in the meantime
  states [governments] and the procreation and education of children remain,
  because the number of the elect has not yet been completed. Many of these have
  not yet been born. But when the number is completed, then let the pope and the
  Turk see what will become of them!
  The church alone, however, preserves all things and is a nursery in the
  world by which the Word and the sacraments are propagated and retained.
  Proselytes are added to it every day. They hear and embrace the heavenly
  doctrine. In the meantime the pope, the emperor, and the Turk also rage
  against us and fight against the pillars that support and preserve them."
  (Page 42)
  Luther writes about verse 17 when Pharaoh invited Jacob to Egypt:
  "Therefore Pharaoh did not receive a private individual, a man whose only
  concern was domestic or political. No, he received the church of God itself,
  which he cherishes, nourishes, and defends. This is an outstanding honor and
  regal dignity. Because of this he was deservedly called a most saintly and
  godly man, a man honored by God; for he was raised up by God for such an
  important function in order that he might preserve the church and give it a
  place, time, and protection, so that it could be gathered, multiplied, and
  built." (Page 61)
  "Would that today, too, we had more princes like him! For this was an
  excellent and incomparable virtue in King Pharaoh-a virtue which deserves to
  be praised by all. And that he was filled with faith and the Holy Spirit is
  apparent from the fact that he supports the church with such great kindness
  and without recompense or any greed. For at the present time you could find
  many who profess the doctrine of the Gospel until they have plundered the
  parishes, the associations, and the monasteries. There are very few who
  befriend the teachers and pastors of the churches out of zeal for godliness
  and from the heart. But if there are such men, they do the right thing by
  following the example of Pharaoh; but it surely was scrupulous, saintly, and
  Christian to the highest degree. For Pharaoh has no regard for his private
  advantage and in supporting the church has no other consideration than piety
  and reverence for God. He himself seizes nothing. Indeed, he rather offers all
  his own property and lavishes it on the protection and support of the house of
  Jacob." (Page 62)
  
  * Lectures on Genesis: Chapters 45 - 50, Luther,
  Martin; "Luther's Works", Vol. 8; Concordia Publishing House, St.
  Louis, 1966