It's kind of interesting living in a world (meaning the subsection of the country in which I now live and work) where no one knows me by my maiden name. If I'm telling a story that involves my maiden name, I have to make a point to note what it is, because no one here ever knew me by that name, except my husband and a handful of his friends (who are my friends as well, but only know me because of him). It's like having a whole new identity. I'd say it's like being in the witness protection program, except that there's a very obvious paper trail to track me back to my maiden name, hehe.
[Transition to spiritual application, unintended as part of the original post]
When we take on the identity of Christ, there are two sides to the coin. On the one hand, we are still the same person on the outside, but with a changed perspective and hope. This is the part that no one can visibly see, much like changing your name and priorities upon getting married, but you're still outwardly no different.
On the flip side, you should be a different person when you are a new creation in Christ. As I am now no longer known by my maiden name, as a daughter of Christ, I should no longer be known as a citizen of this world, but of the heavenly realm. I have a new name and a new identity.
The best part is, we don't have to hide our identity, as though we were in the witness protection program. We're free to shout to the world our new association and identity as co-heirs with Jesus Christ our Master, King, Hope, and Redeemer.
Just another picture of how marriage is a beautiful picture of the relationship between Christ and His Church. 