Even the mystery which hath been hid from ages and from generations, but now is made manifest to his saints:

the mystery that was hidden for ages and generations but is now revealed to His saints.

To whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory:

To them God has chosen to make known among the Gentiles the glorious riches of this mystery, which is Christ in you, the hope of glory.