Yet among the mature we do speak wisdom, though it is not a wisdom of this age or of the rulers of this age, who are doomed to perish. But we speak God’s wisdom, secret and hidden, which God decreed before the ages for our glory. None of the rulers of this age understood this; for if they had, they would not have crucified the Lord of glory.
—1 Corinthians 2.6-8
What an odd set of lines. I’ll be brutally honest. I get that “the mystery” is the inclusion of the Gentiles but in hindsight, it doesn’t seem that mysterious. From the beginning, God has promised a multitude of peoples would be counted among his people. Perhaps, the mystery was not merely the inclusion of the Gentiles as we commonly express it, but rather the way in which they are connected to God’s people? Maybe the “mystery” is more that it is no longer by becoming an ethnic group, but rather by both Jew and Gentile becoming something different and wholly other from what they have been.