“But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:”
King James Version (KJV)
2:7 But we speak the mysterious wisdom of God, which was hidden for many ages from all the world, and is still hidden even from babes in Christ; much more from all unbelievers. Which God ordained before the world - So far is this from coming to nought, like worldly wisdom. For our glory - Arising from the glory of our Lord, and then to be revealed when all worldly glory vanishes.
1Co 2:7 We speak the wisdom of God in a mystery. The Greeks had their mysteries, like the Eleusinian, in which secrets were imparted to the initiated. A mystery is a secret as yet not made known. The wisdom of God in the gospel was a mystery hidden until Christ came, and since then fully comprehended only by "the initiated", the full-grown Christians. The apostolic sense of "mystery" is that which was hidden, but is now disclosed to those who accept the gospel. Those who will not receive the gospel cannot comprehend this wisdom. See Ro 16:25,26 Eph 3:6 1Ti 3:16. [Even] the hidden [wisdom]. Long hidden, though existing in God's plans made before the world. Before the "age" (Revised Version, margin). The Greek word "aion" is correctly "ages". The Jewish age of dispensation may be meant, or it may mean the ages of man's existence. This hidden wisdom proposed all through the dispensations the glory of God's chosen ones.