What does 'Slay the Dragon, Get the Girl' Mean?

Q. In one sentence, can you give the message of the Bible?  

A. “Kill the dragon, get the girl.” 

"This is the Gospel in a nutshell: the Dragon ("that old serpent," Rev. 20:2) is hunted down and killed by Christ (the knight on a white horse, Rev. 19:11), and he saves us from our sins to be his bride (Rev. 19:7).  Christ kills the dragon and gets the girl.  Christ defeats Satan and saves his people. Christ throws down death, then throws a huge marriage feast."“I will put enmity between you and the woman, and between your offspring and her offspring;he shall bruise your head, and you shall bruise his heel” - Genesis 3:15

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