This is the cool stuff I get to read in my Greek Hymnody course:
Φῶς ἱλαρὸν ἀγίας δόξης ἀθανάτου πατρὸς
οὐρανίου ἀγίου μάκαρος ‘Ιησοῦ Χριστέ,
ἐλθόντες ἐπὶ τὴν ἡλίου δύσιν
ἰδόντες φῶς ἐσπερινὸν
αἰνοῦμεν πατέρα καὶ υἱὸν καὶ ἅγιον πνεῦμα θεοῦ.
Ἄξιος εἶ εν πᾶσι καιροῖς ὑμνεῖσθαι φωναῖς ὁσίαις,
υἱὲ θεοῦ ζωὴν ὁ διδούς,
διὸ ὁ κόσμος σὲ δοξάξει.
Joyous light of the holy glory of the deathless
celestial, holy, blessed Father – Jesus Christ.
Those coming at the setting of the sun,
seeing the light in the evening,
we worship the Father, the Son, and the Holy Spirit of God (note: some texts read θεόν here).
Worthy are you to be praised in all time by hallowed voices,
Son of God the giver of life,
therefore the cosmos glorifies you.