QUOTE : The message Paul proclaimed in his ministry was the mystery which has been hidden from the past ages and generations; but has now been manifested to His saints. There are some things God reveals to no one. Deuteronomy 29:29 says, “The secret things belong to the Lord our God.” God reveals other things only to certain people. “The secret of the Lord is for those who fear Him” (Ps. 25:14). Proverbs 3:32 says, “He is intimate with the upright.” Still other things were hidden in the Old Testament but have now been revealed in the New. The New Testament calls them mysteries (mustērion). Paul’s use of this word is not to indicate a secret teaching, rite, or ceremony revealed only to some elite initiates (as in the mystery religions), but truth revealed to all believers in the New Testament. This truth, that has now been manifested to His saints, is that which has been hidden from the past ages and generations, namely the Old Testament era and people. Now refers to the time of the writing of the New Testament. Such newly revealed truth includes the mystery of the incarnate God (Col. 2:2-3, 9); of Israel’s unbelief (Rom. 11:25); of lawlessness(2 Thess. 2:7; cf. Rev. 17:5, 7); of the unity of Jew and Gentile in the church (Eph. 3:3-6); and of the rapture (1 Cor. 15:51). This mystery truth is available only for those who are saints—true believers (cf. 1 Cor. 2:7-16). The phrase to whom God willed to make known clearly indicates that the mysteries are not discovered by the genius of man, but are revealed by the will and act of God. It is God’s purpose that His people know this truth. Of all the mysteries God has revealed in the New Testament, the most profound is Christ in you, the hope of glory.