What do we say to a culture which is so sure it is right, and the Bible is so wrong? Let's address our opponents in reverse order. First, here's the case against pluralism: the world's religions are not different roads up the same mountain, but very different mountains.

Hinduism believes we are ultimately absorbed into reality, and cease to be. Buddhism seeks a "nirvana" or 'blowing out" whereby we cease to be. Islam believes that we will be in heaven to the degree that we are obedient to the Koran and follow the teachings of Mohammed. Judaism worships Jehovah God, but refuses to believe that he has a Son or that heaven comes by him.

If any of these are right, Christianity is wrong. These are not different roads to heaven and God, but very different heavens and gods. They are not the same.

Here's the case against universalism. This theology argues that God wouldn't make just one way to heaven, because that would be unloving and unjust. Christianity answers that one way is enough if it works for everyone and is available to us all. And the gospel does, and is.

magazine recently profiled Don Wetzel, a Dallas man who pioneered the now-ubiquitous ATM machine. Mr. Wetzel has never used one himself. But there's now one of his inventions for every 284 American households. But here's the catch: you have to have the right plastic card with the right magnetic strip. Your friend's ATM card won't work for your account. Only one card will work, no matter how sincere or moral you are. If one card is right, none of the rest can be. So long as one card will work, that's all you need.

And here's the case against relativism: to deny absolute truth is to affirm it. If I say, "There is no such thing as absolute truth," I've made an absolute truth claim.

We don't accept relativism with the Holocaust, do we? With our doctor when we're sick, our food when we eat, the airplane when we board, or our keys when we get ready to leave today? Just with our religion and our ethics, when relativism is convenient.

Jesus' claim to be the only way to God may be true, or it may be false. But it cannot be subjective, merely personal. Either Northwest Highway will take me to this church campus, or it will not. If it works for me, and you live on my street, it works for you as well.

And if Jesus is the way to God, then he's the way for your friends and neighbors and family members as well. Do not allow their eternal destiny to rest on the naïve belief that all truth and religions are the same, since God loves us all. Believe that the Bible is right and our culture is wrong, that Jesus is the only way to heaven. You owe it to those you care about to tell them what you know. So do I.

Suppose that you and I have the same kind of cancer. I have found a single chemotherapy which has cured my malignancy and saved my life. It is indefensible for me not to give it to you. You can decide whether to receive it or not, whether to believe that it is your only hope or not. But if I care about you, I must give you what has worked for me. I don't have an option.