Venerable Isaac, Founder of Dalmátos Monastery at Constantinople - Troparion & Kontakion
Troparion — Tone 3
(Podoben: “The Divine Faith...”)
Appearing as an example of abstinence, and a support of the Church,  / O Isaac, adornment of the Fathers,  / your life was radiant with virtues,  / and you clearly expounded the word of Orthodoxy.  / O Venerable Father, entreat Christ God that He may grant us great mercy.
Kontakion — Tone 8
(Podoben: “As first-fruits...”)
As a faithful servant of God, you were inflamed with zeal for the Church of Christ, /  holding the reins of the Emperor Valens, /  you prophetically foretold His death in a fire because of his closure of the churches. /  Therefore, always pray for us who honor you, O Venerable Father Isaac.