No, dear friends, this is not a post about iPhones. It is a post about comparative religion that may lead one to a blended spirituality.
Comparing two religions is a subjective exercise. I am not convinced too that there is a cut and dry method of comparing faiths. You can almost see what you are looking for if you want to, like a brute force fitting a round peg onto a square hole. Let me give a couple of examples...
1.) When I was studying religious claims as a young man (that was ages ago) at uni, I read that Confusius says -"It is good to honor your parents". That sounds familiar doesn't it? Now, let us see, I am sure we have heard that before, no? Might that not be the 4th Commandment? Ex 20:12. Hmm so would you come up with the Biblical basis of Confucianism?
2. What about the Budhist teaching of Karma? Simply put, this means that your action leads back to you. If you do good, good karma will come back, if you do evil, you will get bad karma one day. Would that not be similar to "what you sow is what you reap" - Gal 6:7. More over it sounds like the Golden Rule too doesn't it?
More sayings that are similar to the Bible can be found else where, I found one in the Baghabad Gita a long time ago.
Even some words or sayings of Jesus had some precedent with the words found in Rabbinic writings like that of the Mishna, so what do you make of it?
Well you can say this makes the claims of Christianity not exceptional, there is nothing unique about this even worst, perhaps Christianity might have copied them and imported them since it is not as ancient as the other religions. So what is the difference?
Well when Confusius says "you have to honor your parents", I come back and ask, "so what if I am not"? Confusius says "but this is bad, you are not being a good gentleman". So I retort - "who cares if I am not a gentleman"? "But this is being horrible", he replies. So I counter "why should I accept what you say, who are you anyway"? End of story.
Ah, but it makes a difference when it is God, the Supreme Being - Creator of the Universe who says "honor your fathers and mothers, so that you may live long in the lang your God is giving to you". All my wise ass remarks won't work. He just says "because I am God and because I say so, end of conversation".
What about karma? Well for the time being assume that we do not have a Jesus who said about the Golden Rule, then all of the sayings of all religions on the Golden Rule are just nice opinions and at best good observations that happens in life, and this can be gathered by observation and experience. Besides, if I were a skeptic, I can only say - well the good/bad thing that happened to you had nothing to do with karma - it was simply fate, a struck of good or bad luck. See what I mean, they carry no weight.
But wait. Jesus said "Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law and the prophets." Matthew 7:12.
What is the differenc? A lot. It is not what is being spoken, it is who that is speaking. If Jesus did not claim to be the Son of God, the Messiah promised by God - you can dismiss him, but that is why what he says makes a difference, because it is the voice of God who is saying it. It is true not because we can observe it, it is true because it is God who commands and speaks it.
All the rest are puny sayings, they are dismissible, but not so with those that are spoken by God.
For this reason, Christianity's claims can never be considered one of those claims, because its claims purports to have the authority of the Creator God behind it. Thus, there is no room for syncretism in Christianity.
One thing too I have observed, all of these religions have some truth but based on Scripture - it is Christianity that has the whole truth, not just some of it but the whole truth.
Psalm 119:160The sum of your word is truth,and every one of your righteous rules endures forever
And oh, by the way, the central teaching of Christianity is not just about doing good to parents and reaping and sowing or such things - the central teaching of Christianity is the Gospel which is ---God sending his Son to die for our sins (yes we owe God a penalty for our sins) at the Cross and that Son was raised from the dead signifying the receipt of that payment. God accepted the payment of Christ on our behalf.
No other religion has topped that claim.