Synaxis of the Seventy Apostles
Commemorated on January 4.
The Church in particular venerates and praises the Seventy Apostles because they taught us to honor the Trinity One in Essence and Undivided.
In the ninth century Saint Joseph the Hymnographer composed the Canon for the Synaxis of the Seventy Apostles of Christ.
Troparion
Holy apostles of the Seventy,
entreat the merciful God
to grant our souls forgiveness of transgressions.
Kontakion
O faithful, let us praise with hymns
the choir of the seventy disciples of Christ.
They have taught us all to worship the undivided Trinity,
for they are divine lamps of the Faith.