The Case for Christianity in 15 Minutes (or less)

by J.W. Wartick

Recently, the need for defending Christianity in a short time period has come to light. I was in a discussion with some acquaintances and was asked to outline why I believe what I believe, but we were on a time crunch so I only had about 15 minutes. Thankfully, I have had access to some wonderful resources that allowed me to memorize some quick, but useful arguments.

This post is intended to provide other Christians with a case for their beliefs that they can memorize and share with others. Note that the study cannot stop here. Most people will not be convinced by the basics outlined here. The goal of this post is to provide a springboard for discussion and keep people engaged in  the idea that God exists and Jesus is Lord. Each section is intended to flow directly into the next. I encourage my fellow Christians to memorize a “case for faith” in a manner like this, so they may be prepared with a reason for the hope within them (1 Peter 3:15).

The arguments are necessarily short and simple due to time constraints, but they offer a short defense that will, hopefully, spur further conversation (again, don’t forget to do more research!). Greg Koukl says we don’t need to convince someone right away–we just need to “put a rock in their shoe” so that we can keep the discussion going later. As always, the most effective apologetic is a prayerful, Christ-reflecting life. May the Holy Spirit guide you all.

1. God Exists (7 minutes)

There are many reasons to believe God exists, let me share a few:

Kalam Cosmological Argument

1) Everything that began to exist has a cause

2) The universe Began to exist

3) Therefore the universe has a cause.

It seems intuitively obvious that 1) is true. Things don’t just pop into and out of existence. 2) follows from modern scientific discoveries like the Big Bang, which implies a single cosmological beginning. 3) follows via modus ponens (the most basic form of argument) from 1 and 2. This argument shows a transcendent cause of the universe. The cause must also be personal because [it] brought the universe into existence at some point, which requires a choice. Choices can only be made by persons, so this entity is personal…

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The Case for Christianity in 15 Minutes (or less)  -“Always Have a Reason”

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RECOMMENDED RESOURCES:  The Case for Faith: A Journalist Investigates the Toughest Objections to Christianity / The Reason for God: Belief in an Age of Skepticism / What’s So Great about Christianity? / More apologetics resources…