[DannyTN]

"Dan, the problem with basing one's faith on scripture alone, is that unlike with Islam, our scripture was written by men, not God. It was never intended as an eyewitness account, and is, in fact, often contradictory. Case and point, 15 John:... "

Our scripture was recorded by men, but was inspired by God and is not contradictory when properly understood.

When you run into an apparent contradiction, you need to step back and examine the verses and context more carefully. Sometimes consulting other Christians and commetaries will point out what you are missing.

The verse you quoted doesn't actually mention salvation, so you need to be careful about assuming it does, when such an assumption runs counter to other verses that are clear and unambiguous.

The context of that verse is in preparing the vine to bear more fruit, not in preparing the believer for heaven. There are at least a couple of ways that verse can be understood. "Taken away", can refer to removal from earth. It may also refer to pretenders who profess Christ but have not internalized that with faith.

Commentary on John 15

And I don't have time today to go into the fact that Islam's Koran was also written by a man and has plenty of contradictions including what it says about prior scripture.

[presidio9]

There are at least a couple of ways that verse can be understood.

contradictory (ˌkɒntrəˈdɪktərɪ) — adj

1. inconsistent; incompatible

2. given to argument and contention: a contradictory person

3. logic contrary Compare subcontrary (of a pair of statements) unable both to be true or both to be false under the same circumstances