For this reason, since the day we heard about you, we have not stopped praying for you and asking God to fill you with the knowledge of his will through all spiritual wisdom and understanding. Colossians 1:9
Paul prayed specifically for knowledge of the will of God, to fill the believers with the knowledge of his will through all spiritual wisdom and understanding. Paul stressed a true knowledge of God and his will. Such knowledge must come from God since he alone clearly reveals his own mind. God takes the initiative to reveal himself (and his will) to those who seek Him. Most truths may be learned; divine truth must be revealed “through all spiritual wisdom and understanding.” Our response is to trust him to do His will.
Spiritual understanding includes wisdom: the acquisition of knowledge and the appropriate application of that knowledge. It gives the believer the ability to “act and think spiritually.” We must place ourselves in spiritual environments with hope and expectation that God will reveal his will regarding specific situations and matters. Paul’s point was not the difficulty of knowing God; it was the attitude required by the seeker of knowledge. God desires us to know Him; and that knowledge is readily available through Christ.