When a secular humanist talks about God, the conversation usually does not start with a philosophical argument. It starts with something more practical: "I just don't see why God is necessary."

That is the heart of the secular humanist position on God. It is not always a passionate denial. It is often a shrug. God is not disproved so much as set aside — treated as an unnecessary hypothesis in a world that seems to run fine without him.

Understanding that posture helps Christians engage more honestly. The person you are talking with may not be angry at God. He or she may simply have concluded that God is irrelevant.

Secular humanism is generally non-theistic. The Humanist Manifestos describe a worldview in which the universe is self-existing, not created. There is no personal God who made the world, sustains it, or acts within it. There is no divine revelation that stands over human reason. There is no supernatural realm at all.

Some secular humanists are hard atheists — they are confident God does not exist. Others are agnostics who simply say the evidence is insufficient. But in either case, the practical conclusion is the same: we should live as if God is not there, because whether or not he exists, he is not a reliable guide for human life.

This is sometimes called methodological naturalism applied to all of life, not just science. In science, you look for natural explanations for natural events. Secular humanism extends that principle to ethics, meaning, politics, and everything else. God is not part of the equation.

The more interesting claim is not "God does not exist" but "we do not need God to live well." Secular humanists believe human beings can build a good life — morally serious, meaningful, compassionate, just — without any reference to a Creator.

This is actually a more challenging claim for Christians to engage, because it sounds reasonable on the surface. Plenty of secular humanists are kind, thoughtful, and genuinely concerned about justice. They seem to be doing fine without God. So what is the problem?

The problem is not that secular humanists cannot behave well. The problem is that secular humanism cannot explain why they should. It can describe what people value. It cannot ground why those values are binding on anyone.

When a secular humanist says human beings have dignity, that claim is doing a lot of work. It is the foundation for human rights, for the wrongness of cruelty, for the obligation to protect the weak. But where does that dignity come from?

In a purely natural universe, human beings are the product of blind, unguided processes. We are complex animals with large brains and social instincts. That is a description, not a foundation for dignity. Saying that human beings have inherent worth because evolution produced us is like saying a rock has inherent worth because geology produced it. The process does not generate the value.

Christianity has a clear answer: human beings have dignity because they are made in the image of God (Genesis 1:26–27). That is not a preference or a social agreement. It is a fact about what human beings are. Dignity is built into the structure of reality because God built it there.

Secular humanism borrows the conclusion — human beings matter — without being able to sustain the foundation. That is not a small problem. It is the central problem.

There is another dimension to the God question that secular humanism simply cannot address: the possibility of a relationship with the One who made you.

Secular humanism offers a good life. It does not offer a known life — a life in which you are personally known, loved, and called by name by the Creator of the universe. Christianity says that is exactly what is on offer. The gospel is not primarily a moral improvement program. It is the announcement that God has come near in Jesus Christ, that the relationship broken by sin can be restored, and that human beings can know God and be known by him.

That is not a need secular humanism can meet, because it does not believe the need exists. But the longing is there in people anyway — the sense that life should mean more than survival, that love should be more than chemistry, that death should not be the final word.

When someone says they do not need God, do not argue immediately. Ask what they mean. "What do you think human dignity is based on?" "If there is no God, why do you think some things are genuinely wrong rather than just widely disliked?" "What do you do with the sense that life should mean something?"

These are not trick questions. They are honest questions that open up the real conversation. You are not trying to win an argument. You are trying to help someone see that the questions they have already answered with "no God" are harder than they look.

Then share what you actually believe — not as a debate point, but as a testimony. You believe in a God who is personal, who made the world, who knows you by name, and who acted in history to bring you back to himself. That is not a hypothesis. It is a relationship.

For more on how secular humanism handles the God question — and how Christians can engage it — The Companion (free) is a great starting point. The Christian Field Guide gives you the deeper tools for real conversations with real people.