If you read the entire bible, you will find that a number of very different proposals for an afterlife (or lack thereof) are presented. This is because there are many different authors who do not always agree. Thus, a person cannot just quote several verses and think that he has covered all the Bible has to say on this matter.
Yes, the Bible is Not written like a novel or in ABC order.
A comprehensive concordance helps put the Bible in alphabetical order by topic or subject arrangement.
Thus, we can take one subject or one topic at a time and see what the Bible writers had to say .
The internal harmony among the many Bible writers shows the many corresponding cross-reference verses and passages.
That is why Jesus could often preface his statements with the words, " It is written...." meaning already written down in the OT.
Thus, Jesus used logical reasoning on the OT as the basis for his teachings.