The Word of God is Sufficient...

I've known people, believers and unbelievers alike, who have questioned or doubted the sufficiency of the Bible. They would commonly say something like: "well you know, it's old, it could be outdated, there are many manuscripts being discovered out there that could be part of the Bible..." I've read articles and watched debates about this topic. But I get to know God more, as I get to know more about His attributes, as I meditate more on His Word, I ended up with this thought:

If GOD is powerful enough to inspire godly people to write the books in the Bible, (for them to be written in such a way that, even though they were hundreds of years apart, all are connected, from Genesis to Revelation) wouldn't God be powerful and sovereign enough to preserve it exactly the way we have the Bible now? Wouldn't God be wise enough to preserve only these 66 books (even after years of bloody persecutions of Christians throughout history and in spite of the manuscripts that people claim should be included) simply because the Bible IS already perfect and complete, and that in it we have all we need to know about God, and with the gracious guidance of the Holy Spirit, we have all we need to know on how to live lives that is pleasing to our Holy King?

With everything I am, I believe in the sufficiency of the Bible simply because God says it so in His Word, and the Holy Spirit confirms it in my heart to be true.