Thou wast the Church's instrument/ in strengthening the Church's teaching of true doctrine;/ thou didst shine forth from the West like a sun/ and didst dispel the heretics' error./ O righteous Leo, entreat Christ our God to grant us His great mercy.
As an upholder of Orthodox discipline,/ thou didst show forth in thy life the pre-eminence of holy Tradition,/ O all-praised Hierarch Colman./ With great personal sacrifice, thou wast true to thy teachers,/ wherefore we pray that we may unhesitatingly follow our fathers in the Faith/ with loyalty and devotion/ and thereby be guided into the way of salvation.
From the throne of thy priesthood, O glorious one,/ thou didst stop the mouths of the spiritual lions;/ thou didst illumine thy flock with the light of the knowledge of God/ and with the inspired doctrines of the Holy Trinity./ Thou art glorified as a divine initiate of the grace of God.
By the mercy of our God,/ thy very life was a sermon, O Father Colman,/ light of the true Faith and example of constancy and piety,/ teaching all by thy selfless devotion./ Praising thee we pray that, withstanding novelty and innovation,/ we may always give glory to Christ our God.