The liturgical book of Lent is the =Triodion=. Besides the biblical
readings, it contains special Lenten hymns to be sung every day at
Matins and Vespers. Of a special beauty are the "idiomela" of St.
Theodore of Stoudion, short penitential hymns, one sung at Matins and
one at Vespers, which more than anything else express the Lenten
spirituality of the Orthodox Church. Here are a few examples:
"Let us begin, O people the spotless fast, for it is the
salvation of our souls.
Let us make our devotion to the Lord in fear, anointing
our heads with the oil of good works and washing our faces
with pure water,
Not many worded in prayer, but saying as we have been taught
to say.
Our Father Who art in heaven! Forgive us our trespasses,