No! Of course not! Bob's book isn't scripture and it isn't "required" reading. However, anyone who has read it understands the bible - the entire bible - better than 99% of those who are making a living preaching God's word.
That sounds like an exaggeration. I assure you that it is not. It is very simply the most valuable extra-biblical publication that has been written in a hundred years, perhaps longer. There are other books written on the same topic but they aren't nearly as powerful, in my view, because they don't spend the time fully establishing each precept that Bob's book spends the time to fully establish with usually all of the pertinent biblical material.
That's like a chef asking, "If my knives are sharp, what do I need that honing steal for?"
Why wouldn't your question apply to every preacher or teacher that has every come along? Why would the Twelve have needed Jesus if they had the scripture? Where was the need for Martin Luther and his 95 theses? Why is it that anyone ever benefited at all from Billy Graham's ministry? Why sit under a pastor or even bother to go to church at all if we have a copy of the bible on the shelf?
If you don't think that there are people out there that have important things to teach you about God's word, then you're worse than stupid. Notice that I said, "IF" there. The fact is that I don't believe that you're stupid at all. You're just making a whopping big error that my strong language is intended to hopefully divert you away from.
No they aren't. Every good commentary or bible teaching has as its focus the word of God, not the teacher. The bible itself tells us that there are those who have been given the gift of teaching, while others have been given a different gift. Why would the Holy Spirit give it some to be preachers and teachers if you're attitude toward bible teaching is correct?
This is typical Independent Baptist Church rhetoric that I've never once been shown a good argument for. The assistant Pastor of the IBC church attended for a few years gave me two different books on the topic that were both patently idiotic. They both started off by declaring the idea of a universal body of Christ a doctrine of Satan. You can know instantly that there isn't going to be any real arguments made for a doctrine when an author starts with that tidbit of unfalsifiable emotionalism. Indeed, "unfalsifiable" is a term that fits that entire doctrine. The arguments beg the question from beginning to end, typically being based upon one or more premises that are only true if the doctrine happens to be correct.
The bible, however, seems to destroy the notion that there are thousands upon thousands of independent bodies of Christ in a single sentence....
Ephesians 4:4 There is one body and one Spirit, just as you were called in one hope of your calling; 5 one Lord, one faith, one baptism; 6 one God and Father of all, who is above all, and through all, and in you all.
Not that this is the ONLY sentence that says something similar. In fact, given the topic that we are discussing here, how can I fail to quote Romans....
Romans 12:3 For I say, through the grace given to me, to everyone who is among you, not to think of himself more highly than he ought to think, but to think soberly, as God has dealt to each one a measure of faith. 4 For as we have many members in one body, but all the members do not have the same function, 5 so we, being many, are one body in Christ, and individually members of one another. 6 Having then gifts differing according to the grace that is given to us, let us use them: if prophecy, let us prophesy in proportion to our faith; 7 or ministry, let us use it in our ministering; he who teaches, in teaching; 8 he who exhorts, in exhortation; he who gives, with liberality; he who leads, with diligence; he who shows mercy, with cheerfulness.