Atheists often paint belief in God as weakness:
Weakness of heart in that we lack the courage to face the harsh realities of the natural world.
Weakness of mind in that we cannot think for ourselves but must invent a deity to worship who then spoon-feeds us the answers to life.
A proper response for evangelicals?
One approach is to demonstrate the strength of evangelical fortitude and intellect. Challenge atheist assumptions, find chinks in their armor, stand strong.
The other is to admit our faults, agree that we are weak, and demonstrate that broken people can find healing and serve productively in society with the help of Jesus.
The first approach is modernist and is likely to feel natural to Christian baby boomers and older, like myself.
The second approach is more postmodern and would be adopted easily by young people (and others young of heart).
My suggestion is simple: Be who you are.
Generally, atheists are modernistic and tend to respect clear thinking and firm foundations. If you can articulate your case against atheism and for theism, go for it. Sure, be respectful. But be steadfast and “rock-solid.”
But if you are not philosophically inclined, just be yourself. Be your authentic, loving, praying, funny, forgiven, somewhat-together self.
OR, do I dare write this. Yes, why not:
Do both. Be strong and weak.
Be linear, clear, incisive, logical (if you can).
But also be vulnerable. Show your weakness, for that is where power is perfected.
When you are both weak and strong you’ll have summarized in yourself the life and ministry of Jesus, who was limited to flesh and bones, murdered by mere mortals, but resurrected in kingly dominion.