One of the hymns sung during Holy Week:
Alleluia. Alleluia. Alleluia.
Behold, the Bridegroom comes at midnight, and blessed is the servant whom He shall find watching, but unworthy is the servant whom He shall find heedless.
Beware, therefore, O my soul, do not be weighted down with sleep, lest you be given up to death, and be shut out of the Kingdom. But rouse yourself crying: Holy, Holy, Holy art Thou, O God! Through the Theotokos, have mercy on us.