The first three days of Holy Week remind us of Christ's last instructions with his disciples. The Matins services of the evenings of Palm Sunday, Holy Monday, and Holy Tuesday, anticipate the events of the next day, share a common theme. These Bridegroom Services are derived from the Parable of the Ten Virgins, which calls for preparedness at the Second Coming, for the "thief comes in the middle of the night." (Matt. 26:1-13)
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, O our God!
Through the Theotokos have mercy on us!