Shine, shine, O new Jerusalem, for the glory of the Lord is risen upon thee; dance now and be glad, O Sion, do thou exult, O pure Theotokos, in the arising of Him Whom thou didst bear.
It says here that this is called the "Paschal Hymn to the Theotokos," and is "sung after the 8th Ode of the Paschal Canon." Here's the full version:
The Angel cried to the Lady Full of Grace:
Rejoice, O Pure Virgin!
Again I say: Rejoice!
Your Son is risen from His three days in the tomb.
With Himself He has raised all the dead.
Rejoice, all ye people!
Shine, shine, O New Jerusalem,
The glory of the Lord has shone on you.
Exult now and be glad, O Zion,
Be radiant, O Pure Theotokos,
In the Resurrection of your Son!