Merry Christmas!
/The introit for yesterday’s vetus ordo Mass (Dominica infra Octavam Nativitatis) is quite beautiful:
Dum medium silentium tenerent omnia, et nox in suo cursu medium iter haberet, omnipotens sermo tuus, Domine, de caelis a regalibus sedibus venit. Dominus regnavit, decorum indutus est: indutus est Dominius fortitudinem, et praecinxit se.
The words are taken from Wisdom 18:14-15 and Psalm 92:1.