i think this is a good backdoor answer to the question of those who haven't heard.
"The universal religion of humankind is: We develop a good record and give it to God, and then he owes us. The gospel is: God develops a good record and gives it to us, then we owe him (Rom. 1:17). In short, to say a good person, not just Christians, can find God is to say good works are enough to find God.
"You can believe that faith in Christ is not necessary or you can believe that we are saved by grace, but you cannot believe in both at once.
"So the apparently inclusive approach is really quite exclusive. It says, 'The good people can find God, and the bad people do not.'
"But what about us moral failures? We are excluded.
"The gospel says, 'The people who know they aren't good can find God, and the people who think they are good do not.'
"Then what about non-Christians, all of whom must, by definition, believe their moral efforts help them reach God? They are excluded.
"So both approaches are exclusive, but the gospel's is the more inclusive exclusivity. It says joyfully, 'It doesn't matter who you are or what you've done. It doesn't matter if you've been at the gates of hell. You can be welcomed and embraced fully and instantly through Christ.' "