If, as some believe, the earth is a battle ground between the forces of Good and evil, I would think it would behoove us (some of us at least) to dig as deeply as possible into God's Word so as to glean as much meaning from it as possible.
Not every one is called to preach. God calls his people to many professions...some are called to study and others are called to watch.
BTW, many thanks and kudos to you Dad for his life's work in spreading the Word of the Lord.;-)
You miss the essential point. Nobody is at risk from any evil while under the protection of Christ. It is imperative to spend the time winning souls for Christ rather than wasting that time worrying about needless details regarding what you are already shielded against. Christ did not ask us to worry about the nature of things that go bump in the night. He commanded us to attempt to get His shield around others.
Well put.