Reasons for the Virgin Birth
Rev. Dr. Ernest Brodie Jr.

Many try to refute the Bible and put its tenets on the level with hoaxes and mythology.  Denying the virgin birth is saying that the Bible contains lies and makes God a liar. If this is true, our salvation would be jeopardized.  The Gospel contains Christ’s virgin birth, death, burial, and resurrection.  Paul states in 1 Corinthians 15:14, 17: “And if Christ be not risen, then is our preaching vain, and your faith is also vain. And if Christ be not raised, your faith is vain; ye are yet in your sins.”
Matthew 1:18-25:  “Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost. Then Joseph her husband, being a just man, and not willing to make her a public example, was minded to put her away privily. But while he thought on these things, behold, the angel of the Lord appeared unto him in a dream, saying, Joseph, thou son of David, fear not to take unto thee Mary thy wife: for that which is conceived in her is of the Holy Ghost. And she shall bring forth a son, and thou shalt call his name Jesus: for he shall save his people from their sins.  Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying, Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us. Then Joseph being raised from sleep did as the angel of the Lord had bidden him, and took unto him his wife: And knew her not till she had brought forth her firstborn son: and he called his name Jesus.”
The name Jesus means Savior.  Jesus received His human nature from His mother, Mary, in fulfillment of prophesy.  Isaiah 7:14: “Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel.”  Joseph had nothing to do with the physical birth of Jesus.  His responsibility was to be the protector of Mary and Jesus.
1.  The virgin birth was necessary in order that we might have a sinless Savior.  
How does this effect Christ’s sinlessness?  The answer is found in Romans 5:12, 19-21:  Wherefore, as by one man (Adam) sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned. For as by one man's (Adam’s) disobedience many were made sinners, so by the obedience of one (Jesus) shall many be made righteous. Moreover the law entered, that the offence might abound. But where sin abounded, grace did much more abound: That as sin hath reigned unto death, even so might grace reign through righteousness unto eternal life by Jesus Christ our Lord.”
2.  The virgin birth was necessary in order for Christ to fulfill prophecy.
Jesus fulfilled over 300 prophecies.  We can trust Him.  Here are a few:  
Genesis 3:15 states He would be born of a women.
Genesis 22:18 states He would be a descendant of Abraham.
Genesis 49:10 narrows His coming through the tribe of Judah.
2 Samuel 7:8-16 states He would descend through the line of King David.
Isaiah 7:14 points to His virgin birth.
Micah 5:2 gives His birthplace as Bethlehem which made it possible for the wise men to find Him. (Matthew 2:1-2)
Jeremiah 31:15 describes the mourning that would result from Herod’s murder of innocent children in his attempt to destroy Jesus.  (Matthew 2:16-18)
Isaiah 8:14-15 states He would be a stumbling stone and rock of offense to Israel.  (Romans 9:32-33, 1 Peter 2:6-8)
3.  The virgin birth was necessary in order that Jesus could receive the throne of David.
David’s throne continued through his son, Solomon.  Because the last descendants of Solomon were so sinful, the monarchy ceased around 600 B.C.  Jeremiah 22:30: “Thus saith the Lord, Write ye this man childless, a man that shall not prosper in his days: for no man of his seed shall prosper, sitting upon the throne of David, and ruling any more in Judah.”  If Joseph had fathered Jesus, it would have contradicted this prediction.  Therefore, the physical descent of Jesus came through the line of David by Mary.  Mary was a descendant of David through Nathan, another son of David (Matthew 1:17, Luke 3:31).
4.  The virgin birth was necessary in order for Jesus to provide salvation for sinful mankind.
Romans 3:23: “For all have sinned, and come short of the glory of God.”
Romans 6:23: “For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.”
Leviticus 17:11 states that blood has to be shed to provide an atonement for sin.
Hebrews 10:4 clearly states that the blood of bulls and goats cannot take away sin.
Good news!  Hebrews 2:9-10 tells us that Jesus by God’s grace would taste death for every man. He is the captain of our salvation.
John 3:16-17: “For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. For God sent not his Son into the world to condemn the world; but that the world through him might be saved.”