“God was reconciling the world to himself in Christ, not counting men’s sins against them.” -2 Corinthians 5:19a
Sometimes the gospel of the kingdom is not good news to people.
Not everyone shares my worldview from a Christian upbringing, and one of the pillars of that worldview is my sinfulness: “for all have sinned and fall short of the glory of God, and are justified freely by his grace through the redemption that came by Christ Jesus.” (Romans 3:23,24)
And without that fundamental recognition of personal sin, the gospel is not necessarily good news.
But if you just don’t see the need for the gospel–or if you want it to be good news, but just don’t understand why–I have something for you to try, from C.S. Lewis in Mere Christianity:
“No man knows how bad he is till he has tried very hard to be good. A silly idea is current that good people do not know what temptation means. This is an obvious lie. Only those who try to resist temptation know how strong it is. After all, you find out the strength of the German army by fighting against it, not by giving in. You find out the strength of a wind by trying to walk against it, not by lying down. A man who gives in to temptation after five minutes simply does not know what it would have been like an hour later. That is why bad people, in one sense, know very little about badness — they have lived a sheltered life by always giving in. We never find out the strength of the evil impulse inside us until we try to fight it: and Christ, because He was the only man who never yielded to temptation, is also the only man who knows to the full what temptation means — the only complete realist.”
Previously, I wrote that obedience builds a connection between you and God, because it gives you the ability to understand things from God’s perspective. One thing God sees is the great sinfulness of sin, and the power of love to overcome it.
You’re a sinner, and God doesn’t hold that against you.