Christianity is not a scientific religion. Here are a couple examples of why:
1) Jesus was portrayed to have long hair. Yet in Paul's letter to the Corinthians, Paul states that men should not have long hair:
Does not the very nature of things teach you that if a man has long hair, it is a disgrace to him, but that if a woman has long hair, it is her glory? (
1 Corinthians 11: 14-15, NIV)
The only explanation that Christians have for this is that Jesus was from Nazareth so he had to have long hair (one Christian even told me that Jesus could do anything he wanted so it was ok for him). In Sikhism, the Gurus followed their own rules.
2) God commanded Samuel to commit genocide against the Amalekites:
"Now go and attack Amalek, and utterly destroy all that they have; do not spare them, but kill both man and woman, child and infant, ox and sheep, camel and donkey." (Samuel 15:3).
Yet, the Bible commands us to not kill (originally it was not to murder, but then it was changed to kill, which is not a subtle point because kill and murder are different). The only explanation Christians have for this is that the Amalekites were particularly evil. But the Nazis said that the Jews were particularly evil, does that mean they were justified in attempting genocide? Of course not. It is another contradiction in the bible - There is a rule that we should not kill, yet God commands it. Again, in Sikhism, the Gurus followed their own rules.
3) Paul's letter to the Corinthians tell us that men should not cover their heads, yet the Pope himself covers his head often times in public:
Every man who has something on his head while praying or prophesying disgraces his head. But every woman who has her head uncovered while praying or prophesying disgraces her head, for she is one and the same as the woman whose head is shaved. For if a woman does not cover her head, let her also have her hair cut off; but if it is disgraceful for a woman to have her hair cut off or her head shaved, let her cover her head. For a man ought not to have his head covered, since he is the image and glory of God; but the woman is the glory of man. For man does not originate from woman, but woman from man; for indeed man was not created for the woman's sake, but woman for the man's sake. Therefore the woman ought to have a symbol of authority on her head, because of the angels...(Corinthians 11:4 to 11:10)
The only explanation Christians have for this is that that particular passage does not apply to us today. Why not? If it is the word of God, why doesn't it apply anymore? Once again the Sikh Gurus followed their own rules, and everything written in the Guru Granth Sahib is applicable today just as much as it was when it was written.
Any scientific piece of work, regardless of its conclusion, cannot possibly contradict itself. Christianity and the bible contradict themselves in several places...these are just 3 examples.
4) Jesus did not write the bible. The bible was written around 70 years AFTER Jesus died. The Sikh Gurus wrote the Guru Granth Sahib with their own hands, increasing its credibility. If someone wrote a book about me 70 years after I died, isn't there a chance that it lacks the accuracy it could have if I had written it myself? Think about it...
Christianity "changes" itself when it finds it convenient (early Catholics thought the Earth was the center of the universe, that the Earth is 6000 years old, that evolution does not take place)...now many Christians believe that the Earth is not the center of the universe (hopefully all of them do), that the Earth is more than 6000 years old (sadly, some still believe that), and yes some Christians are now admitting that evolution could be possible since the evidence is virtually irrefutable. Realize it: Christianity and the bible have changed...if God is perfect, how can his word change? How can his word contradict itself??
Make your own logical conclusions about all these things...