My friend Brian Knapp who writes at Choosing Hats takes the presuppositionalist approach to defending the Christian faith. (Actually, Choosing Hats is dedicated to presuppositional apologetics.) Brian recently engaged an unbeliever online and was encouraged to write a brief about the engagement.
Brian then wrote an article titled, “Why I Believe” explaining why he is a Christian from a presuppositional perspective.
So tell me about yourself. You aren’t a Christian, correct? Do you believe any sort of god exists? It seems like you are saying it is at least possible that the Christian God exists, the one described in the Bible.
What does Romans 1 say about God and people’s knowledge of him?
18 For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth. 19 For what can be known about God is plain to them, becaus e God has shown it to them. 20 For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse. 21 For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. 22 Claiming to be wise, they became fools, 23 and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things. Romans 1:18 – 22 (ESV)
“For although they knew God.” This would mean – if it is true – that you already, in a sense, know that God exists. This part of vs. 21 is pretty important, too – “they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened.” This says that reasoning about God is a moral issue.
I think we both know there is a difference between proof and persuasion. Someone could offer you a proof that God exists, but that doesn’t mean you will be persuaded. Yes, I know that anyone could make that claim. Muslims could say the same about Islam. They could say, “You don’t believe it because you are a sinner,” or, “my proof isn’t sufficient because you fail to see the truth.” But if Christianity is true, then this accurately describes you.
Do you agree that proof never operates in a vacuum? That it always operates based on assumptions? If you think about it, it has to – we are fallible creatures, we can’t get “outside” ourselves (on our own) – anything originating within us (even proof) is going to be doomed to be subjectively based and therefore ultimately unknowable.
This means the question of God’s exists – of anything at all – is ultimately an issue of authority.
Read the whole thing-> Why I Believe