7 No, we declare God’s wisdom, a mystery that has been hidden and that God destined for our glory before time began.

Read 1 Corinthians 2:7 Using Other Translations

But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
But we impart a secret and hidden wisdom of God, which God decreed before the ages for our glory.
No, the wisdom we speak of is the mystery of God —his plan that was previously hidden, even though he made it for our ultimate glory before the world began.