Lord of the Powers is sung in Great Compline.
Lord of the powers,
be with us,
for in times of distress,
we have no other help but you.
Lord, of the powers,
have mercy on us.
The 3rd Sunday of Lent is the Sunday of the Holy Cross. This is the apolytikion of the feast, also sung on Sept. 14. This apolytikion is found near the beginning of Matins and sung at the Little Entrance during Liturgy.
Save, O Lord, Your people
and bless Your inheritance,
granting victory to the faithful
over the enemy,
and by Your Cross protecting
Your commonwealth.
Christ is risen from the dead
by death trampling down upon
death
and to those in the tombs
He has granted life.