God scripted scripture to tell us about Him. This is the Theocentricity of the Bible. Even in the most non exiting, non interesting or seemingly meaningless details of the scriptures we should find God. In Judges 12:8-12 we are told of three judges and very little about their lives. God, the living, divine, soverign, creator of the universe put these verse in the scriptures where they are and thus it is necessary for us to exegete them to learn more about God before moving on to the narrative of Samson in chapter 13.