This is a question for the CHRISTIANS in this community, only. I just want to figure out who I am dealing with here.
If it's been corrupted, how do you determine what is true and what is not?
If humanity could twist the text, it it false in what is written, or in the way it's interpreted?
Edit: How do you as a Christian study the text you have that is said to be true?
As believers in God through Christ Jesus, we need to be diligent in studying the Bible. Many a scholar says that the Bible is it's own best commentary.
The reformation, which started under Martin Luther, would not have occurred if not for a him seeking to know what the scriptures say above all other writings of the time.
The Great reformers of the church came up with the 5 Solas:
Faith comes by hearing. And hearing by the word of God
We are saved by faith, and not by works lest any man should boast.
Jesus said, "I am the way, the truth, and the life; no man comes to the father except through me." John 14:6
For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
Eph. 2:8-9 ESV
Let them praise the name of the Lord, for his name alone is exalted; his majesty is above earth and heaven.
Ps. 148:13 ESV
There are many more verses that support the Solas.
In these, we understand the principles of salvation and how we lead others to Jesus. What's more, it is through the text of scripture that we understand life and the hidden nature of God.
Now, don't get me wrong. There are are many good books on apologetics, and many great teachers of the subject. But, I believe that the Bible covers every topic we could ever hope to uncover that has any relevance to how we are to conduct ourselves or share the gospel with others.
Love you and God bless.