God wants you to be sure. His Word, the Bible, says in 1 John 5:13,"These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life."

#1 - We are all sinners by nature and by choice. - "All have sinned, and come short of the glory of God." (Romans 3:23)

#2 - We cannot save ourselves. - "Not of works, lest any man should boast." (Ephesians 2:9)

#3 - We deserve death and hell. - "The wages of sin is death" - (Romans 3:23)

Because God loves us He has provided forgiveness for our sin. He has given us a provision, His Only Begotten Son, Jesus Christ. Jesus said, "I am the way, the truth, and the life: no man cometh unto the Father, but by me." (John 14:6) 

Our provision is Jesus Christ

#1 - Jesus is God and became man. - " In the beginning was the Word, and the Word was with God, and the Word was God . . . . And the Word was made flesh, and dwelt among us." (John 1:1, 14)

#2 - Jesus died for us on the cross. - "Christ also hath once suffered for sins, the just for the unjust, that He might bring us to God." (1 Peter 3:18)

#3 - Jesus was resurrected from the dead. - "(Jesus) was delivered for our offenses, and was raised again for our justification." (Romans 4:25)

Jesus can affect our lives but first