Isaiah 9:6-7 For unto us a Child is born, unto us a Son is given: and the Government shall be upon His shoulder: and His Name shall be called Wonderful, Counsellor, The mighty God, The Everlasting Father, The Prince of Peace. Of the increase of His Government and Peace there shall be no end, upon the Throne of David, and upon His Kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever. The zeal of the LORD of Hosts will perform this.
Matthew 2:7-11 Then [king] Herod, when he had privily called the wise men, enquired of them diligently what time the star appeared. And he sent them to Bethlehem, and said, Go and search diligently for the young Child [Jesus]; and when ye have found Him, bring me word again, that I may come and worship Him also. When they had heard the king, they departed; and, lo, the star, which they saw in the east, went before them, till it came and stood over where the young Child was. When they saw the star, they rejoiced with exceeding great joy. And when they were come into the house [house of the birth of Jesus - not a cave], they saw the young Child with Mary His mother, and fell down, and worshipped Him: and when they had opened their treasures, they presented unto Him gifts; gold, and frankincense, and myrrh.
Luke 2:1-11 And it came to pass in those days, that there went out a decree from Caesar Augustus [a great-nephew of Julius Caesar], that all the world should be taxed. And this taxing was first made when Cyrenius was governor of Syria. And all went to be taxed, every one into his own city. And Joseph also went up from Galilee, out of the city of Nazareth, into Judaea, unto the city of David, which is called Bethlehem; because he was of the House and lineage of [King] David: To be taxed with Mary [also of the House of King David] his espoused wife, being great with child. And so it was, that, while they were there, the days were accomplished that she should be delivered. And she brought forth her firstborn son, and wrapped Him [Jesus] in swaddling clothes, and laid Him in a manger [i.e. a basket for feeding animals]; because there was no room for them in the inn [lit. spare room of the house]. And there were in the same country shepherds abiding in the field, keeping watch over their flock by night. And, lo, the Angel of the Lord came upon them, and the Glory of the Lord shone round about them: and they were sore afraid. And the Angel said unto them, Fear not: for, behold, I bring you good tidings of great joy, which shall be to all people. For unto you is born this day in the city [Bethlehem] of [King] David a Saviour, which is Christ the Lord.
Christmas Day "Savior Day"
CHRISTmas - 'Glory to God in the Highest'
Celebrating the Arrival (Birth) of Jesus Christ the Savior of Mankind.
Christmas Day - "Savior Day" The Day Jesus Christ the Savior of the world entered into the world!
Christmas Day is "Savior Day" the day God (Jesus Christ) the Savior of mankind entered into the physical human realm to accomplish both the Redemption [crucifixion] and Salvation [resurrection] of mankind.
The exact Christmas Day is thought to be in the Fall sometime however the actual day is unknown as the Bible highlights the adult Ministry of Jesus and particularly the last week, Holy Week, when Jesus was with His disciples in and around Jerusalem and among His fellow Jews in their Temple.
Christmas time is a wonderful time it is a time of reassurance of God's love and of God's commitment for all mankind throughout all time.
Enjoy the Christmas holiday season knowing that there is indeed a Savior-Redeemer for mankind and that Jesus Christ is the Savior-Redeemer.
Note: Jesus was not born in a cave He was born in a house -- Matthew 2:11 "the house" where Jesus was born. Joseph was born in Bethlehem and his relatives still lived there that is why Joseph had to return there to report for the census. Mary was probably 18+ years old and was not a little child herself. Mary's conduct, replies and responses (Luke 1:46-56) indicate that at the least Mary was a very mature woman.
Source: Christmas Traditions