Come, O faithful, let us eagerly take up the strong shield of the fast to deflect the enemy's every evil scheme. Let us not be enticed by passionate pleasures nor fear the fires of temptations; for through them Christ the lover of us all will reward us with crowns for our perserverance. Then let us pray with boldness; let us fall down before Him and cry out, begging peace for our souls and great mercy. (Stichera from the Presanctified Liturgy, Tone 5)
We beseech Thee, O Lord, that our earnest devotion may become fruitful through Thy grace; for then shall our fast be profitable to us, if it is well-pleasing to Thy loving kindness; through jesus Christ our Lord. Amen.