The Gospel is "Good News." The Good News is in contrast with the bad news. So lets get the bad news over and then we can get to the Good news.
The Bad news is that we have offended God. This is what the Bible calls sin. "No one is righteous no not one." "All have sinned and fallen short of the glory(standard) of God." ( Romans 3:23). I am sorry to bring it up but it is God's pronouncement not mine. Sin is lawlessness or simply breaking the law of God.
The bad thing about sin besides all the hurt it causes is the punishment it brings on the sinner. "The wages of sin is death" (Romans 3:23). "He who has the son has life he who does not have the son of God does not have life but the wrath of God rest upon him." (John 3:36). God is holy and He must judge sin or become a sinner himself.
God loves you and he wants to deliver you from sin's judgment so, "God so loved the world that he sent his one and only son into the world so that whosoever believes in him would not perish but have everlasting life." (John 3:36). Jesus took our sins upon himself. "For Christ died for sins once for all the just for the unjust so that he might bring us to God." (1 Peter 3:18).
You may wonder if you need to become a good person first before you are good enough for heaven.But God loves sinners for he said. "While we were still sinners Christ died for us." (Romans 5:8).
God took your sinfulness and put it on His lovely Son on the cross. This could only happen because Jesus lived a pure and beautiful life he had no sin of his own to die for therefore he was the only one qualified to die for another.And as God he was able to die for all mankind. The resurrection is the testimony and ratification of the sufficiency of Jesus death.
But God is not going to force Himself on anybody so He leaves it up to you. "For as many as received him who believed in his name he gave the right to become the children of God." (John 1:12).
Salvation is free to us because Jesus paid the price. He only ask that we believe in him. Pray and tell God that you admit you are a sinner and need to be saved. Tell God that you trust Him to save you.
Some feel uncomfortable praying so here is an example of what you might want to say to God.
God I know I am a sinner and deserve punishment. I know Jesus paid for my sins on the cross and he rose again to prove the judgment is paid. I need the salvation you offer. I turn away from my sins and receive your free gift of salvation. From this moment on I leave my old selfish life behind and will follow you as my Lord and I will live a life that says, "Thank You."
Do not get confused: Saying words in a prayer does not save you but believing in Jesus death to pay for your sins do, the prayer is just an expression of that faith.