The “mystery” in Col. 1:27 is not something hard to understand or mysterious. The “mystery” in Col. 1:27 is information that had been kept secret, a body of truth that God kept secret “since the world began (Rom 16:25), until He revealed it to Paul.
"To whom God would make known what is the riches of the glory of this mystery (Gk. musterion, secret) among the Gentiles; which is Christ in you, the hope of glory:” (Colossians 1:27)
“To whom God would make known what is the riches of the glory of this mystery (Gk. musterion, secret) among the Gentiles; which is Christ in you, the hope of glory:” (Colossians 1:27)
Since the Lord is Sovereign…every moment, on every level, in every dimension, God is creating and operating… all existence.
He needs nothing; rather, He creates needs in us, and then He fulfills them, on a perfect schedule, with infinite wisdom.
In charging Timothy to “preach the Word,” the Apostle does not mean, as some have supposed, that the pastor should draw his sermon material equally from all parts of the Bible. Yes, “all Scripture” is given so that the “man of God” may be fully equipped for his life and ministry. But in this same letter the Apostle Paul indicates that the Scriptures must be “rightly divided” (2 Tim. 2:15) and that his own God-given message is “the Word of God” in particular for the present age of “the dispensation of the grace of God” (See Eph 3:2; 2 Tim.
Though man failed in each earlier dispensation, none of the dispensations prior to this present "dispensation of the grace of God" (Eph 3:2) should be considered a failure of God. God is eternally all knowing! He foreknew man's hopelessness and so prepared "from the foundation (beginning) of the world," by making provision of "the Lamb of God," Jesus Christ, to die for the sins of all mankind.
What actually happened in that moment we received Christ as our personal Savior? Let's now look closer at this new relationship that believers today can enjoy with God via their salvation in Christ and by their union with Christ in their human spirit.
Lucifer is a created being, he was not birthed of God as believers are. Lucifer does not possess the kind of life that could ever truly emulate God. Lacking this knowledge and life that believers possess, the "angels desire look" into that which concerns the believers. 1Pet 1:12 (AMP) ... [these] things which have now already been made known plainly to you ...Into These Things [The Very] Angels Long To Look!
Man is a mystery to himself – what makes him tick, what is it that drives every human?
It is "desire" - there is an "object" of man's unconscious desire and there also is a "driver within man" that drives him toward fulfilling that desire.
Many thoughts here are taken from “Understanding Our Bible” by Craig MacDonald., Professor, Grace Bible College.