ABCs of Salvation

B - BELIEVE IN YOUR HEART THAT JESUS CHRIST DIED FOR YOUR SINS, WAS BURIED, AND THAT GOD RAISED JESUS FROM THE DEAD.

This is trusting with all of your heart that Jesus Christ is who he said he was.

Romans 10:9-10

That if you confess with your mouth, "Jesus is Lord," and believe in your heart that God raised Him from the dead, you will be saved. 

For it is with your heart that you believe and are justified, and it is with your mouth that you confess and are saved.