Something in the verses today reminds me of the Ethiopian eunuch, who was reading the prophet Isaiah, in the days following Pentecost, and needed somebody to help him understand. The apostle Philip, miraculously, was in just the right place at the right time.
As we read these verses slowly we get the impression that David really did get excited about the scriptures. He was enthusiastic about what The Lord said about everything. His Bible was probably only the first 5 books of the Bible; The Pentateuch (Genesis, Exodus, Leviticus, Numbers and Deuteronomy).
While watching the sheep in the fields David had plenty of time to meditate on the messages he had heard at the synagogue. Did he actually accompany his family to the temple on the sabbath? Were the sheep taken into the barn for holy days, or just left to themselves?
There had been much shame in his family line when his maternal grandmother returned to Bethlehem having lost her husband and both her sons. The sons had broken Jewish tradition by taking Moabite wives, so as a foreigner, Ruth could have faced a lot of ridicule and rejection.
These first verses at the beginning of our study give us the feeling that David was watching other believers, and how they lived their lives. He came to the conclusion that those who follow the laws of God are blessed, and those who do not are not!