Paul says he 'wrote briefly,' but this doesn't mean the concept is simple. It points to a deeper, foundational understanding.
Paul’s comment, 'as I have written briefly,' might seem a bit confusing. He’s not saying the mystery itself is simple, but that his written explanation in previous parts of the letter was concise.
Referencing Prior Teaching:
He’s pointing back to earlier sections of Ephesians (like chapters 1 and 2) where he’s already touched upon aspects of this mystery. He's essentially saying, 'I've explained this before, though in a condensed way.' This encourages the readers to recall what he's already shared.
Foundation for Further Explanation:
This brief mention serves as a bridge. He acknowledges he's already introduced the concept, but now, in chapter 3, he’s going to delve deeper into the administration and implications of this revelation, especially concerning his apostleship to the Gentiles. His earlier writing laid the groundwork; this section expands upon it.