Now to Him who is able to strengthen you by my gospel and by the proclamation of Jesus Christ, according to the revelation of the mystery concealed for ages past
KJV
Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,
ASV
Now to him that is able to establish you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery which hath been kept in silence through times eternal,