Behold the Bridegroom comes at midnight

The Monday, Tuesday and Wednesday of Great Week are marked by the service of the NYMPHIOS (the Bridegroom Service). The morning service of each day takes place on the evening of the night before in anticipation. Each day liturgically begins at sunset, and so the service of Monday is held on Sunday evening, the service of Tuesday on Monday evening, and so on. On Sunday evening, the priest, preceded by lights, and bearing the icon of the Bridegroom makes a solemn procession within the church and places it in the centre, while we sing the following hymn which we are to repeat over the next two days:
“Behold the Bridegroom comes at midnight, and blessed is the servant whom he shall find watching. And again, unworthy is the servant whom he shall find heedless. Beware therefore O my soul, do not be weighed down with sleep, lest you be given up to death, and lest you be shut out of the kingdom. But rouse yourself crying: holy, holy, holy are you our God.

“Archimandrite Vassilios Papavassiliou”