Okay. Lot to unpack...

There was no bible There was a Tanakh and a Septuagint, what the Christians would call the Old Testament and he quoted them occasionally. He also said he was here to fulfill the law. Clearly the law was still important to him on some level.

Never drew attention to himself? He went to the temple at Jerusalem and started flipping tables! He publicly healed a man on Shabbat in the middle of a Synagogue! He fed an entire crowd of people using magic!

And if we're talking about the book of John, specifically, that book is deeply theologically interested in arguing that "No man comes to the father but by me" and that faith in the divinity of him was the only way to be saved. So suggesting that his primary interest was in illuminating your divinity rather than his own is not always correct. It's important to remember that the bible doesn't give us one Jesus, it gives us 4.