I love how the Message says this in verse 7- "God’s wisdom is something mysterious that goes deep into the interior of his purposes. You don’t find it lying around on the surface. It’s not the latest message, but more like the oldest—what God determined as the way to bring out his best in us, long before we ever arrived on the scene."
The wisdom of God isn't just lying out there for everyone to see. Not everyone grabs a hold of it. But, we are allowed a sort of glimpse. But we get access. God lets us in on some of the plan. We don't have to guess and wonder about life and death, salvation and purpose- we know! And we didn't get this access any other way than by relationship with Jesus Christ.

1 Corinthians 2:1-6 and 1 Corinthians 2:7-16