King James Version
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,New International Version
Now to him who is able to establish you by my gospel and the proclamation of Jesus Christ, according to the revelation of the mystery hidden for long ages past,Catholic Public Domain Version
But to him who is able to confirm you according to my Gospel and the preaching of Jesus Christ, in accord with the revelation of the mystery which has been hidden from time immemorial