Paul refers to the relationship of Christ and the church as a great mystery. He’s not so much talking about what he does or doesn’t know about the subject, but that this fact was hidden from everyone for thousands of years until Jesus came and started talking about it right before He was crucified and resurrected, after which He ascended to heaven and began His church.
Hey, quizzer, you remember me saying we’d get back to the whole, “You obey this person. You over there obey that person.” You remember that conversation from before the beginner checkpoint, right? Well, as hard of a question as this may be, especially with the application thereof, heh, what are employees supposed to do?