03-3. More about the Bible XX INCOMPLETE XXX

The questions are the title of the above painting by Paul Gauguin, explained in Wikipedia as follows:
Where Do We Come From? What Are We? Where Are We Going? (French: D’où venons-nous ? Que sommes-nous ? Où allons-nous ?) is an 1897–98 painting by French artist Paul Gauguin. The painting was created in Tahiti and is in the Museum of Fine Arts in Boston, Massachusetts. Viewed as a masterpiece by Gauguin, the painting is considered “a philosophical work comparable to the themes of the Gospels”.
Wiki explains that Gauguin attended a Catholic boarding school with a strong religious focus, and although he became anticlerical, these questions stayed with him.
1. Relation Between the New and Old Testaments
Does the New abolish the Old?
2. Books included in the Bible
Was it merely something agreed by like-minded people, or is it more than that?
3. Format of the Bible
Until relatively recent times, people relied on having the bible read to them, as shown in the verses below.
Although I would like to have a pop-up form which allows you to keep your personal answers here, I haven't found how to do that within budget. So, I plan to prepare downloadable pdf files with fillable spaces for your answers - yet to be done.