Whoa, Whoa, wait a minute... Paul what do you mean? Interesting verse, Paul says that being saved is not just believing in Jesus and His Resurrection, Paul is saying that we need to "Openly Declare' it not only does he say it once but twice and the second time he states it he says that is how you know you are saved.

Question:

1. Are you openly declaring your faith in Jesus with others.
2. Does anyone know you are a believer

I believe Paul is stating something bold, he is saying that if you truly believe than you truly have been transformed by it and there is no way you should be keeping quite. 

Its time to get back to our First Love and remember who saved us and what He saved us from and tell the world.

If you openly declare that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. For it is by believing in your heart that you are made right with God, and it is by openly declaring your faith that you are saved.
ROMANS 10:9-10