Romans 10: 9 -14    9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved. 10 For it is with your heart that you believe and are justified, and it is with your mouth that you profess your faith and are saved. 11 As Scripture says, “Anyone who believes in him will never be put to shame.” 12 For there is no difference between Jew and Gentile—the same Lord is Lord of all and richly blesses all who call on him, 13 for, “Everyone who calls on the name of the Lord will be saved.” 14 How, then, can they call on the one they have not believed in? And how can they believe in the one of whom they have not heard? And how can they hear without someone preaching to them?

This passage means that if you declare with your mouth that Jesus is Lord, and believe in your heart that God raised Him from the dead You will be saved. So all you have to is say Jesus is Lord and believe that God raised Him from the dead and you will be saved. There is not two Lords, there is one Lord and He is Lord of everything, You need to tell others about God so they can tell the word to others.