The Mystery
READ
Some secrets are kept because they're dangerous. Others are kept simply because the time hasn't come yet to tell them — not hidden out of malice, but held, waiting for the right moment to be revealed. Paul uses a word like that here: mystery. Not something spooky or unknowable, but something God had planned all along and was finally ready to make plain. And what gets revealed is bigger than almost anyone in Paul's world was prepared to hear.
Read Ephesians 3:1–6 and notice exactly what the secret turns out to be.
For this reason, I, Paul, the prisoner of Christ Jesus for the sake of you Gentiles—Surely you have heard about the administration of God’s grace that was given to me for you, that is, the mystery made known to me by revelation, as I have already written briefly. In reading this, then, you will be able to understand my insight into the mystery of Christ, which was not made known to people in other generations as it has now been revealed by the Spirit to God’s holy apostles and prophets. This mystery is that through the gospel the Gentiles are heirs together with Israel, members together of one body, and sharers together in the promise in Christ Jesus.
REFLECT
"This mystery is that through the gospel the Gentiles are heirs together with Israel, members together of one body, and sharers together in the promise in Christ Jesus." Read that sentence slowly, because in Paul's world, it wasn't a mild theological point. It was seismic. For centuries, the story of God's people had a clear shape — one nation, chosen, set apart, carrying the promises given to Abraham. Gentiles weren't villains in that story, but they weren't insiders either. The dividing lines were ancient, religious, cultural, and deeply felt on both sides.
And Paul says God had been planning, all along, to dissolve that division entirely — not by expanding Israel's boundaries slightly to let a few outsiders in, but by making Gentiles "heirs together," "members together," "sharers together." Notice how many times "together" shows up in a single sentence. This isn't an addendum to the original plan. Paul calls it a mystery specifically because it had been "hidden for ages in God" — present in His purposes from the start, but not yet disclosed, waiting for Christ to be the moment it finally came into the light.
It's worth sitting with how radical this would have sounded to Paul's first readers, because distance tends to soften what should still shock us. Imagine centuries of assuming you knew exactly where the line was drawn between belonging and not belonging — a line reinforced by tradition, Scripture as you'd always read it, and generations of shared identity — and then being told that line was never actually where God intended to build His family. That the line itself was part of a story that was always headed somewhere bigger.
This should unsettle our own assumptions too, because we're just as prone to drawing lines we assume are permanent — based on background, denomination, politics, class, the kind of person we picture when we picture "real" faith. Paul's mystery suggests that God's plan has always run wider and deeper than whatever category we've used to sort people into insiders and outsiders. Not because differences don't exist, but because they were never meant to be the final word on who belongs to God's family.
There's something worth noticing, too, in how Paul describes his role in all this: a "stewardship of God's grace" given to him for the sake of others, not a secret he discovered and kept to himself, but a mystery entrusted to him specifically so it could be shared. Revelation, in this passage, isn't private property. It's given in order to be given away.
If God's plan has always been this much bigger than one people, one culture, one tradition — then whatever boundary you've quietly assumed defines who's really "in" might be smaller than the family God has actually been building since before the world began.
RESPOND
Take a moment to process what God might be leading you to do in light of what you just read.
What assumptions have you inherited about who belongs and who doesn't — in the church, in your community, in your own sense of who God is really for?
Paul emphasizes "together" three times in one sentence. Where might God be inviting you into deeper togetherness with people different from you?
If this mystery was "hidden for ages" and then revealed at exactly the right moment, where might you need to trust God's timing on something you can't fully see yet?
REST
Take a moment to rest in God’s presence and consider one thing you can take away from your time reading, then close your devotional experience by praying:
God, thank You for a plan that has always been bigger than we could have imagined — one that includes far more people than we would have naturally assumed. Forgive us for the lines we draw that You never intended to be permanent. Help us see Your family as You see it, wide and inclusive, rooted in grace rather than background or tradition. Thank You for revealing this mystery to us. Let us hold it not as private knowledge, but as good news meant to be shared. Amen.