By looking at my study guide for my new book, Nothing but the Blood of Jesus, you will see what kind of questions are answered in the book. If these are the sorts of questions you want answered, then you will find my book helpful.
I don’t think Jesus was saying in Mark 7:10 that children should be put to death if they fail to take care of their parents. He doesn’t seem to be quoting that particular law from Exodus 21:17 favorably.
The Bible was not written primarily to reveal God to us, but was written to reveal the same thing that Jesus revealed on the cross, which is that we scapegoat people in the name of God. And until we see this, we will never read the Old Testament correctly, nor will we ever understand God properly.