Premise 1: If Jesus is God, then the Bible is true.
How do we know Jesus is God? There are a few independent historical facts we can point to that can prove that He is God. Firstly, His miracles performed and the independent confirmation of them in other non-biblical sources. Secondly, His claim that He is God. Thirdly, the solid evidence for a physical resurrection of Jesus' body. Lastly, the unlikelihood that the gospels were forged as well as their early writing date. As Jesus, who is God, taught from the Old Testament, we can safely assume that the Old Testament is in fact truth. Who better to differentiate fact from fiction than God Himself, who was there to witness it all? Further, it was Jesus who called the apostles to spread the gospel, therefore we can safely accept the New Testament as fact as well. The important thing now is the correct interpretation of these Scriptures. The important thing now is the correct interpretation of these Scriptures. At Apologetics Central we refer to the 5 points of Calvinism.
Premise 2: If the Bible is true, then Christianity is true.
If Jesus is God and the Bible true as a result of that, it would elevate Christianity above all other worldviews which teach other views on the life of Jesus, for example, Islam which sees Jesus as a prophet and Atheism which sees Jesus either as a wise man or a lunatic or non-existent depending on whom you are debating. Christianity is the worldview pointing to the truth. Only through the lens of the Bible can we fully make sense of the fallen creation we live in.
Premise 3: If Christianity is True, then everyone should adopt the christian worldview.
This premise flows logically from 1 and 2. Since Jesus is God, the Bible is true which in turn confirms Christianity, the Christian worldview is the only logical worldview to adhere to. To adhere to anything other than the Christian worldview would be deemed irrational.
Conclusion: Christianity is true, God exists, Jesus is God and the Bible is the infallible word of God.
MIRACLES: The Miracles performed by Jesus and their independent confirmation in Biblical and non-Biblical sources.
We find lots of independent confirmation of Jesus's miracles outside of the Bible (however the Bible is also a credible source). In the Jewish Talmud, it is taught that the miracles Jesus performed are the work of the devil. Today, the irony is that what was intended to prevent the Jews from converting, only serves as independent confirmation that Jesus did, in fact, do those miracles. Thallus in early AD tried to explain away the darkness during the crucifixion. He said it was an eclipse. Today this only serves as independent confirmation of the crucifixion, as well as the darkness. However due to our technology we know that no eclipse could have happened during that period.
RESURRECTION: The most important piece of evidence we can point to.
The resurrection is the single most important historical event. For if it is false, there is no reason to believe in Jesus as the savior. Firstly we can argue for the truth of the resurrection due to the impossibility that the gospels were forged. In order for the gospels to gain the level of credibility they have today, the writers would have used certain strategic methods in storytelling to give them their credibility. For example, Jesus first appeared to women, whom at the time their word and testimony meant nothing compared to that of a man. The gospel writers would then rather have made Jesus appear to men and not women to grant them instant credibility. The fact that they didn’t, testifies to a certain degree the faithfulness of the gospels to what really happened. Secondly, had Jesus not risen from the dead and his psychical body still remained in the grave, it would have been extremely easy for the Jewish council to get his body, put it on display and instantly destroy the flame that ignited early Christianity. Third, the post-resurrection eye-witness accounts also attest to the truth of the resurrection.
CRUCIFIXION: The events that happened during the crucifixion and ripples still felt of those events centuries later.
The writings of Thallus are mentioned before. Note that Thallus wrote at around 50AD. Now there would be no sense in Thallus still writing about Jesus around 10 years after the resurrection unless something spectacular happened. Thousands of people were crucified each year, yet why talk about one person 10 years after if there isn't something special about Him? Why still talk about Him today? The only valid explanation is that Jesus must have done miracles and that He in effect must have been God. Otherwise, the majority of humanity has been deceived for over 2000 years in the most well thought out lie in history.