Commemorated on May 9
Troparion & Kontakion
Troparion — Tone 4
With a great voice like that of a trumpet, / you proclaimed the coming of Christ to the world. / You were revealed as a swiftly-writing scribe of the things to come; / therefore, we acclaim you with hymns, / most illustrious prophet Isaiah.
Kontakion — Tone 2
Endowed with the gift of prophecy, / prophet-martyr Isaiah, herald of God, / you made clear to all the incarnation of Christ / by proclaiming with a great voice: / “Behold, the Virgin shall conceive in her womb.”