Josh McDowell says that people often refuse to believe that which they don’t want to believe in spite of evidence to the contrary. When the first Europeans settled in Australia they found a mammal which laid eggs, spent some time in water and some on land, had a broad, flat tail, webbed feet, and a bill similar to a duck. It was, of course, the platypus. But when this was reported back to England, people thought it was a hoax. So the colonists took a pelt from this animal back there, but people still considered it was a hoax. In spite of the evidence, they disbelieved because they didn’t want to believe.
I think the same is often true of some of us who don’t believe there’s any truth in the gospel of Christ. To which I often reply by quoting the words of the Bible itself: ‘Taste and see that the Lord is good.’ Don’t argue, just try it