I heard that many times when I was a jw, and never accepted it. It only occurred to me quite recently, in a conversation with Trev and a couple of his mates, both ex jws themselves, that none of us really had a bible study. We just went through a book full of wts doctrine, with the odd usually out of context scriptural reference to back up the point they were making.
It's the same at the wt study on a Sunday. Only a few of the cited scriptures are ever read, the important stuff to them is what the society is saying in the wt. It's all about getting people indoctrinated as quicky and efficiently as possible, and becoming another wts slave, an unpaid book and magazine distributor.
I try at times to figure out why, at 21 and having just gained a degree, that I fell for all that. I haven't worked it out yet, and I'm not sure I ever will.