God so love the world that he gave His only begotten Son that whoever believe in Him shall not perish, but have eternal life. (JOHN 3:16.) All (people) have sin and fall short of God's Glory. (Romans 3:23.) Imagine being in court for a crime you committed sin against God. Your charges, felling to Love God with all your heart, Sin of knowing to do good but, don't, using God"s name as a curse word and the list go"s on. So your waiting to be sentenced and some stranger out of nowhere pays your fine which it was impossible for you to pay. Since your fine (penalty for Sin)( Romans 6:23) was paid,  your free to go.Hold on,  let's look at what Jesus Said " whosoever believe in Him should not perish, but, have eternal life."(John 3:15). If you ask almost any one if they believe in God or Jesus they would say yes, a lot of people are confused about what believe really mean. The Bible even says the devil believe (James 2:19). So, what does Believe really mean? This topic we can talk about for a long length of time but, i will explain briefly. Believe mean in the Greek Strong's Concordance, "to have Faith in, upon, respect to a person or thing, to Put one's Trust in, or with, Entrust, Believe Commit to, Trust. Believing in God mean accepting God Son Jesus, that God gave to die for our sins, to everyone that Repent (acknowledge one's sins against God & turning to God) Believing that Jesus Paid the Price for your Sins and was raised from the Dead. Believing mean giving your Life to Jesus, by Faith and asking Jesus to come into your Life and Trusting Jesus as Your  Lord And Savior.I believe most people that say they believe in God or Jesus, have intellectual knowledge of Jesus, believing that He lived 2000 plus years ago believing that he died on the cross etc. They haven't Repented, they haven't given their Life to Jesus, they haven't asked Jesus to come into their Life and they haven't Trusted Jesus as their Lord and Savior. So these people really don't understand and don't have a relationship with God through Jesus Christ.  Belief of the Bible really mean. Belief consist of Repentance, Faith/Action, Trusting & Commitment. This is Believing in Jesus as Lord and Savior!