Venerable Isaac the Confessor, Founder of the Dalmatian Monastery at Constantinople - Troparion & Kontakion

Troparion — Tone 8

Champion of Orthodoxy, teacher of purity and of true worship, / enlightener of the universe and adornment of hierarchs: / all-wise father Isaac, your teachings have gleamed with light upon all things. / Intercede before Christ God to save our souls.