When someone shares good news with us, it's usually because there was bad news first.
In the case of our relationship with God our Creator, the bad news is that we have all been separated from God because of sin, which is choosing our way instead of God's.
The good news is that God gave us His son, Jesus Christ, to sacrifice his life for ours so that through the work of Jesus we are forgiven, reconciled to God and have the promise of heaven. It is when we believe and place our faith in Jesus, instead of our own good works, that we receive this free gift of God's love called salvation.