How do you know absolute truth exists?
When we talk about how to determine truth, this is called epistemology. If we want to know if it is reasonable to make an absolute truth claim, such as those concerning God, absolute moral standards, or the way by which a person receives eternal salvation, I think the whole question is necessarily predicated by whether or not God exists. I would agree that for mankind to be able to know an absolute standard of morality would be quite impossible without God. Before I dive into defending the existence of God, I would like to look first at the consequences of a reality with no God, or in essence no absolute truth.
But what is different about Christianity? I would like to look at the apostles. We know from historical accounts outside of the Bible, and also within the Bible, that all of the apostles (except John who was exiled to Patmos) who were with Christ died martyr's deaths. This fact is not very convincing at first being that every religion has its fair share of martyrs. However there is something rather unique about the deaths of these particular men. Consider their relationship with Christ. All of these men knew Christ more intimately than any other human being. When Jesus was crucified every one of them fled the scene. These men came to the harsh reality that this guy they had been following for years just died in front of them, and now their lives were at stake. Imagine following a guy who said he was God, and then witnessing people spit on him and then kill him in an effortless manner. Seriously? Who would believe this guy? What happened next is amazing; you see these men who abandoned everything they believed turn and start a revolution that would shake the world. They did this on the basis of claiming that Christ rose from the grave, and that everything he said was true. This is massive for the reason that they had no motive for making such rash claims. They had already made their getaway. So we see that the apostles went to their deaths of their own will for something that they knew first hand was either true or false. No other religion offers such things as this. And to put the icing on the cake these men were no scholars, they certainly were not warriors, and by no means were they the most noble of men. These men were uneducated Galileans who held the lowest jobs in their society, but they were able to spur on the creation of a new world religion over night, based on the truth that they experienced when they met Christ after His resurrection.
There are other examples of facts that make Christianity unique and you can view those points in the reading suggested below. This viewpoint just happens to be the one that I prefer.
By definition God is perfect. He embodies perfectly what good is, and therefore His character cannot allow for injustice and rebellion to go unpunished. Jericho was not an innocent nation by any means in regard to the standards set forth by God. It is also evident from the story that the people of Jericho knew who Israel was, and also knew about the Lord of Israel. From other instances in scripture it is evident that God gives people chances to repent from their rebellion. In fact that is the story of the Bible. Jericho chose not to repent, and in accordance to His Law God decided to remove Jericho as a penalty for their sin. I am suggesting to you that because of mankind's sin we all deserve to be destroyed, but thankfully God allows each of us an opportunity to repent of our sins, and allow Him to Justify us. All God asks for is a repentant heart not a perfect person. Jericho had that chance, but chose to reject it. God by necessity in order to maintain His Holy Nature must punish the unjust. However because of God's perfect Love mankind is able to repent and turn to Him for what only He can do. And that is Justify us for our sin. This idea of God's Holy wrath toward sin, and God's perfect Love for His people can be captured in the beauty of the Cross. It was at the Cross that God executed His wrath on Christ for the sins of the entire race of mankind. It was also at the Cross that God portrayed the extent of His love for his creation by taking the penalty for our sins on Himself and providing a way by which we could be justified, and that is trusting Christ and surrendering to His will.
Ben Ward co-author of this Blog was a major contributor to this post.