1 Corinthians 2:1-16
We are to pursue the secret and hidden wisdom of God with all our hearts, but how do we do that? 
Paul has come to the community of Corinth walking in humility with God. He didn’t look to gather followers through his own wisdom and observation of the people. He had no interest in wowing people with his own intellect. 
He wanted the words of his lips to only profess the Kingdom of God, not the kingdom of man. Paul was so intentional in how he approached the duty of spreading the gospel, that he ‘trembled in fear and weakness’ (2:3) because he had no interest in the gospel spreading because of his own wisdom. He was sold out to relying on the Holy Spirit working through him. 
Paul speaks of the secret and hidden wisdom of God which we are to pursue with a steadfast heart. Paul refers back to Isaiah 64:4 and 65:17 with the words, “What no eye has seen, now ear heard, nor the heart of man imagined, what God has prepared for those who love him.” 

From of old no one has heard or perceived by the ear, no eye has seen a God besides you, who acts for those who wait for him.

Isaiah 64:4

If you go back and read those two chapters as well as those verses in Isaiah you will see the mystery of how God works being prophesied through Isaiah in Jesus coming for our eternal redemption. Our righteous deeds without Christ are like polluted garments. Without Jesus our works on this earth are as valuable as dirty clothing unable to be worn. We are so loved.
The miracle of Jesus will forever be a mystery to us on earth. Our God is so great and so generous, He has given us His Spirit so we may know Him. As Paul speaks about the depth of knowledge we have gained, he tells us how important the relationship we have with the Holy Spirit is. The quality of our relationship directly affects our perceived access to the Heavenly Father on a daily basis. I say perceived because we unknowingly throw worldly walls and priorities up in front of us and the Spirit. 
Only the Spirit can bring deep wisdom and truth to our lives. The Spirit searches the depths of our Father and each of us, bringing revelation to our souls. In order for us to know where God calls us and know where our feet are to walk, we must invest as number one priority each day, our relationship with the Holy Spirit. What relationship is greater than that with our Heavenly Father who blessed us for all time with Jesus.

For behold, I create new heavens and a new earth, and the former things shall not be remembered or come into mind.

Isaiah 65:17