The Gospel is very simple: Jesus Christ, the eternally existing Son of God, who is fully God and the prophesized Messiah, became a real human man, born of a virgin named Mary in Roman-occupied Israel roughly 2000 years ago. He lived a perfect and sinless life, performing countless miracles. He was tempted as we are, yet he never sinned. He was then Crucified and died on the Cross to pay for 𝐚𝐥𝐥 the sins of the 𝐞𝐧𝐭𝐢𝐫𝐞 𝐰𝐨𝐫𝐥𝐝 once and for all. He was then buried in a tomb, and then he 𝐫𝐨𝐬𝐞 𝐚𝐠𝐚𝐢𝐧 and fully came back to life. He was seen by 500+ witnesses, including his disciples, who physically touched him, ate with him, and had long conversations with Jesus. After 40 days, Jesus ascended to Heaven from the Mount of Olives and is seated at the right hand of the Father, where he is today. This is the Gospel of Jesus Christ.
Believe in this man, the Lord Jesus Christ. Put all your faith, hope and trust in him. Once you believe for a moment you are instantly saved forever have eternal life.