Grouping:
Forefeast and Paramon (Eve) of the Nativity of Christ (Dec 20-24)
These stichera are for the Aposticha at Vespers on December 24th, but are also sung as the 2nd set of stichera at "O Lord, I have cried" on the Sunday before the Nativity, when it falls on the 24th. "Let us go before, O nations, and celebrate the Nativity of Christ . . . ."