People write books about the Bible and how to live in accordance with it for the same reasons as they preach and teach. Do people not teach what the Bible says, the context of the passage, the application of the text? It’s a normal process that comports with Paul’s instruction to the church.
Or are you merely being obtuse?
Hardly. I just don't believe legends and mix-and-match stories being made up in the Bible. If people know God in their minds and his laws in their hearts (Heb 8:10) and the Bible is "perspiuous" they don't need preaching. Either Heb 8 is lying or the Bible is not perspicuous. I vote for the latter.
Aain, Orthodox Christians fllow the Septuagint, the OT version used by the Apostles in 93% of the cases. Prov 16:4 doesn't exist in Septuagint. You are right: we have nothig to talk about.