The Confession of St. Martha

Martha:
Jn 11:27:  ἐγὼ πεπίστευκα ὅτι σὺ εἶ ὁ χριστὸς ὁ υἱὸς τοῦ θεοῦ ὁ εἰς τὸν κόσμον ἐρχόμενος.

Peter:
Mk 8:29:  σὺ εἶ ὁ χριστός.
Mt 16:16:  σὺ εἶ ὁ χριστὸς ὁ υἱὸς τοῦ θεοῦ τοῦ ζῶντος.

The antiphon to the Benedictus for the Feast of St. Martha in the Liturgia horarum conflates the two confessions:  Tu es Christus, Fílius Dei vivi, qui in hunc mundum venísti.