Factum est ergo magnum gaudium in illa civitate

There is a beautiful piece reported at the NLM recounting Father Robert C. Pasley's reflections on the providential appropriateness of the texts from the 6th Sunday after Pentecost for the welcoming of Summorum Pontificum.

I'm very fond of this kind of reflection, so I think that it is very lovely that the introit for this coming Sunday, the 7th after Pentecost, begins: Omnes gentes, plaudite manibus: jubilate Deo in voce exaltationis!

Much rejoicing, and the clapping of hands.