μακαρίζειν σε τὴν Θεοτόκον,
τὴν ἀειμακάριστον καὶ παναμώμητον,
καὶ Μητέρα τοῦ Θεοῦ ἡμῶ͂ν.
Τὴν τιμιωτέραν τῶ͂ν Χερουβὶμ,
καὶ ἐνδοξοτέραν ἀσυγκρίτως τῶ͂ν Σεραφίμ,
τὴν ἀδιαφθόρως Θεὸν Λόγον τεκοῦσαν,
τὴν ὄντως Θεοτόκον σε μεγαλύνομεν.
It is truly meet
to bless Τhee, O Theotokos,
ever blessed, and most pure,
and the Mother of our God.
More honorable than the cherubim,
and beyond compare more glorious than the seraphim.
Without corruption Τhou gavest birth to God the Word.
True Theotokos, we magnify thee!
The justly famous Axion Estin. Last four lines by St Cosmas the Melodist, brother of St John Damaskene. First four lines revealed in 980 AD by the Archangel Gabriel, and written by his finger, as described here. I would make a terrible psalti, as I have trouble singing this all the way through: I always tear up. Softy.