It's That Simple

That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
- Romans 10:9 (KJV)

And it shall come to pass, that whosoever shall call on the name of the Lord shall be saved.
- Acts 2:21 (KJV)

For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
- John 3:16 (KJV)

Eternal Life. Think about it.