John 6:53 "So Jesus said to them, "Truly, truly, I say to you, unless you eat the flesh of the Son of Man and drink His blood, you have no life in yourselves." - This is the basis of the idea of transubstantiation.
John 10:17 "For this reason the Father loves Me, because I lay down My life so that I may take it again."
Mark 10:45 "the Son of Man did not come to be served, but to serve, and to give His life a ransom for many."
Unless you want to argue that the Bible is unproven (I would not disagree with you there but the Scriptures are foundational to Christian doctrine) then you have to accept that Jesus said these things.
Among many denominations, yes.
But since when has having denominations been fundamental to being Christian?
I agree that it is A basic fundamental but it is not all-encompassing. Indeed, if it was then I'd have no problem with Christianity at all. But to this very day the Eucharist is celebrated in RCC and EO churches and they hold that the transubstantiation of the crucified Christ is one of the seven sacraments or mysteries of the faith. It is the one sacrament that they celebrate every time they gather. Clearly it is extremely important.
To many Churches, yes it is.
Single churches do not represent all of Christianity. In fact, even if you were to take all the official denominations of Christianity, you would not have a representation of all Christianity.
I was indoctrinated in Christianity since my childhood, even to the point that at age 7 my father had me learning Greek so that I could read the New Testament in the original language and become a Biblical scholar. I am an ex-Christian because of Reason but to suppose that my idea of what makes a Christian is something outside of that the Church has always held it to be is like suggesting that Michael Jackson could neither sing nor dance. (RIP)
THE Church? Which one? There are many. I'd argue that, with some exceptions, there are as many Churches as there are Christians.
Don't get me wrong. I'm all for people not going the traditional route and all. If they want to call themselves Christians without the traditional "take up your cross daily and follow Me" mentality and they want to turn it into something that even Gandhi might have adopted, more power to them. Gandhi stated in his autobiography, "I do not seek redemption from the consequences of my sin. I seek to be redeemed from the sin itself, or rather from the very thought of sin. Until I have attained that end, I shall be content to be restless." This he said in rejection of Christianity as a doctrine.
I am aware of Gandhi's rejection of Christianity and his reasoning for it, though I was not aware of this quote. Thank you for providing it.
Clearly you guys have no historical context for the Christian faith nor have you troubled to learn even the most basic teachings except the "Golden Rule" which is not uniquely Christian.
Of course it's not uniquely Christian, but it's the most important part of ANY religion. If you don't have the Golden Rule, then everything else falls apart.
As for Christianity exclusively... "I am the Truth, the Way, and the Life. No one comes unto the Father except through me." (Or something like that. lol) Accept Christ as the Lord and Savior, who bore the punishment deserved to us sinners, so that we could have eternal life.
I don't have to be Christian, or former Christian, to understand Christianity.
So again, if you want to know why Christ had to serve as a sacrifice, I suggest you research ancient sacrificial rituals, their respective meanings, and why the people felt they were needed. You may find you answer there.