The gospel is that God has made a way for us to have a saving relationship with him for now and through eternity by the death of his son Jesus to be the sacrifice for our sins so that he can live in us through the Spirit.
Humanity is born spiritually dead. This is the bad news. The good news is “the gospel”. The good news is a solution to this problem of being spiritually dead. God provided the solution to this problem by sending Jesus as the Messiah, the savior.
Jesus died on the cross to deal with our sin problem, the sin issue. God decided to give his own life in exchange for ours and provided propitiation/atonement for our sins.
He did this to remove the sin problem so that he could send his Spirit and restore the life that had been lost in Adam/in the garden for those who are willing to receive the forgiveness and the gift of the Spirit.
Forgiveness reconciles us to God and the Spirit of the Lord being present in us saves us and walks with us now and into eternity. For those who accept this and receive this, he will walk with us actively now and reveal himself to you and guide you.
The Bible is the testimony of who he is and of what he has said and there will be eternal consequences, either a life with him or a life without him, for what we decide in this life.
Sin – death – forgiveness – restoration of life
Since we have now been justified by his blood, how much more shall we be saved from God’s wrath through him! 10 For if, while we were God’s enemies, we were reconciled to him through the death of his Son, how much more, having been reconciled, shall we be saved through his life! 11 Not only is this so, but we also boast in God through our Lord Jesus Christ, through whom we have now received reconciliation.