Some anti-theists have their minds so set that they will never even consider what you have to say. These people, sadly, aren’t worth arguing with. Only God himself could change their minds. However there are some atheists who are really willing to have a debate, and they might present their objections, which are almost always misunderstandings about God’s nature, or the faith, etc.
I’ve debated my agnostic-atheist friend from a game we play, but on a forum for the game, not the game itself. Using a forum is better because you have time to do research and reply. We’ve gone through the topics of invisible dragons, teapots rotating the sun, the problem of evil, the omnipotence paradox, “problems” with the Bible, and more, all of which have been refuted. He at one point admitted I’d made a case for deism…
His final argument was that the Gospels were written 50-100 years after Jesus (he even got the dates wrong, go figure) and that there were apparently “lots” of people who claimed to be the savior (yet he could not give me
one example, let alone one example who was anywhere near as—I guess you could say,
successful—as Jesus) and that there are other religions which could be true. I told him that other religions contradict each other, and truth cannot contradict truth, and that Jesus IS the Truth, (John 14:6). That pretty much ended that.
I’m considering showing him this, which seems to be the best scientific case for God’s existence that I’ve seen on the internet:
godandscience.org/apologetics/is_god_real.html
The Republican, if these people truly want to have a civilized discussion with you, do it. But if they’re being immature about it, then don’t. Perhaps show them the link above. If you need any help, feel free to contact me.
Yeah, you just have to end the conversation at that point. There just isn’t much else you can do.