If it was the night before Christmas and you had not taken proper preparations (shopping, wrapping, decorating, cooking, etc) for the event you would be in trouble. Note - it is actually the day before Christmas so 'get to it' while you can!
Even with all the hope for the coming Messiah and with all the prophecies pointing to His coming...the proper preparations were not made and the people were not ready. For instance, Micah 5:2 informs us that Messiah would be born in Bethlehem...yet virtually nobody was looking for Him there...and no room was prepared for Him:
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. And all went to be registered, each to his own town. And Joseph also went up from Galilee, from the town of Nazareth, to Judea, to the city of David, which is called Bethlehem, because he was of the house and lineage of David, to be registered with Mary, his betrothed, who was with child. And while they were there, the time came for her to give birth. And she gave birth to her firstborn son and wrapped him in swaddling cloths and laid him in a manger, because there was no place for them in the inn. (Luke 2:1-7 ESV)
Back in Jerusalem, the only preparations being made were to get rid of the Child-King:
Now after Jesus was born in Bethlehem of Judea in the days of Herod the king, behold, wise men from the east came to Jerusalem, saying, “Where is he who has been born king of the Jews? For we saw his star when it rose and have come to worship him.” When Herod the king heard this, he was troubled, and all Jerusalem with him; and assembling all the chief priests and scribes of the people, he inquired of them where the Christ was to be born. They told him, “In Bethlehem of Judea, for so it is written by the prophet: “‘And you, O Bethlehem, in the land of Judah, are by no means least among the rulers of Judah; for from you shall come a ruler who will shepherd my people Israel.’” Then Herod summoned the wise men secretly and ascertained from them what time the star had appeared. And he sent them to Bethlehem, saying, “Go and search diligently for the child, and when you have found him, bring me word, that I too may come and worship him.” After listening to the king, they went on their way. And behold, the star that they had seen when it rose went before them until it came to rest over the place where the child was. When they saw the star, they rejoiced exceedingly with great joy. And going into the house they saw the child with Mary his mother, and they fell down and worshiped him. Then, opening their treasures, they offered him gifts, gold and frankincense and myrrh. And being warned in a dream not to return to Herod, they departed to their own country by another way. Now when they had departed, behold, an angel of the Lord appeared to Joseph in a dream and said, “Rise, take the child and his mother, and flee to Egypt, and remain there until I tell you, for Herod is about to search for the child, to destroy him.” And he rose and took the child and his mother by night and departed to Egypt and remained there until the death of Herod. This was to fulfill what the Lord had spoken by the prophet, “Out of Egypt I called my son.” Then Herod, when he saw that he had been tricked by the wise men, became furious, and he sent and killed all the male children in Bethlehem and in all that region who were two years old or under, according to the time that he had ascertained from the wise men. (Matthew 2:1-16 ESV)
Unlike the folks of Bethlehem, we should always make room for Jesus and not just on Christmas (or the night before)! He should have permanent residence in our heart and mind. One of the reasons we might not do this is that we do not want a King because we like playing at the role ourselves (like Herod).
This Christmas, make room for Jesus. After all, the entire Holiday is actually about Him, the greatest gift ever given...wrapped in swaddling clothes...wrapped in the great love of God - for YOU!