The questions we must first ask in relation to our question:
What are the differences between the major world religions?
Does the evidence point to Christianity?
If Jesus rose from the dead, is Christianity not true?
With atheists arguing that they believe in just one less God than theists do, are all religions the same, and if not, what are the differences? To detail this, we must look at the most important differences in how someone obtains salvation in the main world religions:
Judaism teaches that by doing right and praying, one can atone for their behaviour and be reconciled to God by their righteousness.
Islam teaches that one can come closer to "Paradise" by performing the five pillars, an act of obligatory worship that all Muslims are required to perform.
Hinduism teaches that we must gain enough "good karma" to escape the reincarnation cycle and enter a complete spiritual existence.
Buddhism teaches us to follow the Eightfold Path and act accordingly, so we may attain Nirvana.
In all of these faiths, salvation is obtained by the individual's actions. Christianity is the only faith that states the opposite:
For it is by grace you have been saved, through faith – and this is not from yourselves, it is a gift of God – not by works, so that no one can boast – Eph. 2:8-9
The Christian faith is the only one where the work is done for us. Jesus died the death we deserved so that by believing in Him, we "may not perish, but have everlasting life." Although this makes Christianity distinct, what makes this view more viable than that of attainable salvation?
Both Christianity and Islam, the two religions with the most followers worldwide, believe in the existence of Jesus, who is revered in both the New Testament and the Quran. The detail of Jesus’ resurrection is one of the major differences that separates Christians from Muslims, as Islam teaches Christ did not die on the cross, but supposedly an imposter took his place instead.
As it is written in the Bible:
And if Christ has not been raised, our preaching is useless and so is your faith – 1 Corinthians 15:14
So, the determining factor in the validity of the Christian faith is whether Jesus was raised from the dead or not. The evidence for the resurrection is resounding, however, with the evidence including, but not being limited to:
Despite being written at different times and in different locations, eyewitness testimonies from the time all corroborate the same crucifixion and resurrection.
Almost all of the disciples were subject to torture and death because of their faith—a devotion that’s illogical if it was just a fabrication.
Jesus’ burial is widely attested to in early, independent testimonies, with even the Jews proclaiming the tomb was empty.
Christ's post-resurrection appearances cause a historically traceable explosion of Christian faith throughout the region.
Jews such as Paul, who persecuted and killed Christians, converted to Christianity once Jesus appeared to him, giving his life to spread the gospel and eventually being beheaded for his refusal to deny Christ.
With all this evidence and considering that the Quran was written almost 600 years after the life of Jesus, it would seem logical to conclude that the message proclaimed in the New Testament gospels is indeed the truth.
Conclusion
If the gospels are true, as the evidence suggests, then we can conclude from the very words of Jesus that Christianity is the one true religion. Although other religions may have elements of truth or practical teachings, they all emphasise that we can obtain salvation by our own works. The Christian message opposes this message in every sense and states our only hope is in the Lord and Saviour, Jesus Christ, and His death and resurrection.