Remembering singing "Let my prayer arise" (we sang it in English) has just brought tears to my eyes! And has renewed my fervent prayers for unity, so I can go back to singing it...
Well this one will get you...the 9th Ode from the Irmos of the Great Canon of Pascha:
"Shine, shine, O New Jerusalem, for the glory of the Lord has risen upon you. Dance now and be glad, O Sion, and you too rejoice, pure Mother of God, at the arising of him to whom you gave birth."