Time, Place & Significance
In those days a decree went out from Caesar Augustus that all the world should be registered. This was the first registration when Quirinius was governor of Syria.
Luke 2:1-2

For unto you is born this day in the city of David a Saviour, who is Christ the Lord.
Luke 2:11

Christ is the Answer - why?
And Jesus said to him, "For the Son of Man came to seek and to save the lost."
Luke 19:10

For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him.
2 Corinthians 5:21

Christ was offered once to bear the sins of many. To those who eagerly wait for Him He will appear a second time, apart from sin, for salvation.
Hebrews 9:28