Hope you enjoy the snapshots of thousands of blog posts that [sparked] a little interest in me. I work selling books like this.
I read something somewhere...
Jonathan Edwards, from Miscellanies #139:
I am convinced that there are many things in religion and the Scriptures that are made difficult on purpose to try men, and to exercise their faith and scrutiny, and to hinder the proud and self-sufficient.
John Piper addresses this same issue, speaking particularly about difficulties we encounter in Scripture, in his sermon, "Why God Inspired Hard Texts." He says God has given us hard texts to prompt at least four things, which seem to match well with Edwards' thoughts above: