Since our culture largely rejects belief in God and, therefore, the possibility of a God-caused event, it rejects the Bible's account of Jesus' birth. Yet some things cannot be explained apart from the supernatural intervention of God; and Jesus' birth clearly falls into that category, beginning with the miraculous preservation of the Messianic line.
In ancient days, a family lineage was of great importance to a Jewish family, so it's not surprising to find in the gospels of Matthew and Luke the genealogy of the Messiah, the Redeemer of Israel.
Matthew's genealogy follows the line of Mary's husband, Joseph, establishing the Lord's paternity all the way back to King David and Abraham. Luke's follows His mother Mary's connection all the way to Adam. And both genealogies run through David to establish Jesus' rightful claim to the Davidic throne.
Most people don't realize the enormity of the miracle involved in preserving Christ's lineage for more than 2,000 years. God had to guarantee the presence of a male descendant in every generation, ultimately culminating in the birth of the Lord Jesus. We may think, No big deal. A lot of men can trace their lineage back hundreds of years. The difference, however, is that God told the world His Son would be born thousands of years before it happened. Then He had to ensure the proper descendants to produce the promised Messiah.
Think about it this way. U.S. President Abraham Lincoln had four children, all sons: Robert Todd Lincoln, Edward Baker Lincoln, William Wallace Lincoln, and Thomas Lincoln. Of those four sons, one died in infancy. Another died as a youth. A third died in early manhood, before he was married.
The only one of President Lincoln's sons to marry was Robert Todd, and he had three children: two daughters and a son. His son died in 1890, before he ever married. So in less than three generations-approximately 100 years from the time Lincoln was born-Lincoln's direct male line had disappeared. It is impossible for anyone today to claim to be a great-great-great-grandson of Abraham Lincoln. His line is extinct.
God maintained Jesus' lineage for more than 2,000 years-preserving it and providing all the males necessary to keep it alive. He dis so despite Satan's attempts to wipe it out because Satan knew what God had promised. Satan believed that if he could destroy all the males, he could terminate the line and prevent God from fulfilling His promise to bring the Messiah.
Fortunately for us, not even Satan can thwart the Almighty. God overrules in the affairs of men, and history unfolds exactly as He has planned from the very beginning.
Christ's remarkable lineage is not the only supernatural event connected with his incarnation. In Matthew 1:21, an angel of the Lord appeared to Joseph in a dream to impart significant information about the unborn child. Mary and Joseph were not yet married, but they had made a commitment to each other that was almost as binding as a legal marriage in that culture.