Beginning on September 15th and continuing until the Leavetaking of the Feast, it is customary during the weekday Divine Liturgies to chant the hymn: “O come, let us worship and fall down before Christ. O Son of God, Who wast crucified in the flesh, save us who sing to Thee: Alleluia.” This solemn invocation is sung immediately following the Little Entrance, in place of the usual troparion to the Son, as a liturgical expression of devotion and reverence for the mystery of Christ’s crucifixion, which is central to the commemoration of the Holy Cross during this liturgical period.

Troparion — Tone 1

O Lord, save Your people, / and bless Your inheritance. / Grant victories to the Orthodox Christians / over their adversaries. / And by virtue of Your Cross, / preserve Your habitation.

Kontakion — Tone 4

As You were voluntarily raised upon the cross for our sake, / grant mercy to those who are called by Your Name, O Christ God; / make all Orthodox Christians glad by Your power, / granting them victories over their adversaries, / by bestowing on them the Invincible trophy, Your weapon of Peace.