Romans 10:9
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.
John 3:16
For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life.
Hebrews 11:1
Faith is believing in what you hope for and being certain of what you do not see.