The Psalms And The Trinity

Ὅτι παρὰ σοὶ πηγὴ ζωῆς. Ἐνταῦθα δὲ σαφῶς ἡμῖν ἀποκαλύπτει τὸ τῆς ἁγίας Τριάδος μυστήριον. Πηγὴν γὰρ ζωῆς τὸν μονγενῆ τοῦ Θεοῦ Λόγον ὠνόμασεν. Οὕτω γὰρ καὶ αὐτὸς ἑαυτὸν διὰ Ἰερεμίου τοῦ προφήτου καλεῖ. Ἐμὲ ἐγκατέλιπον πηγὴν ὕδατος ζωῆς, καὶ ἐπορεύθησαν, καὶ ὤρυξαν ἑαυτοῖς λάκκους συντετριμμένους, οἵ οὐ δυνήσονται ὕδωρ συσχεῖν. Λέγει τοίνυν τὴν πηγὴν ταύτην παρὰ τῷ Πατρὶ εἶναι, κατὰ τὴν εὐαγγελικὴν διδασκαλίαν τὴν λέγουσαν· Ἐγὼ ἐν τῷ Πατρὶ, καὶ ὁ Πατὴρ ἐν ἐμοί. Ἐν τῷ φωτί σου ὀψόμεθα φῶς. Ὑπὸ γὰρ τοῦ παναγίου Πνεύματος φωτιζόμενοι τὰς τοῦ Μονογενοῦς σου θεωροῦμεν ἀκτῖνας. Οὐδεὶς γὰρ, φησὶ, δύναται εἰπεῖν Κύριον Ἰησοῦν, εἰ μὴ ἐν Πνεύματι ἁγίῳ. Καὶ· Ἡμῖν ὁ Θεὸς ἀπεκάλυψε διὰ τοῦ Πνεύματος αὐτοῦ. Μεμαθήκαμεν τοίνυν ἀκριβῶς διὰ τῶν προητικῶν λόγῶν τὰς τρεῖς τῆς μιᾶς θεότητος ἰδιότητας. Θεοδώρητος Ἐπίσκοπος Κύρρος, Ἑρμηνεία εἰς Τους Ψαλμούς, Ψαλμός ΛΕ´ Source: Migne PG 80.1124c

Because with you is the fount of life. 1 Here is openly revealed to us the mystery of the Holy Trinity. For with the fount of life he names the only Begotten Word of God. For so He announced Himself through the prophet Jeremiah: 'You have forsaken me, the fount of living waters, and gone off and dug for yourself broken cisterns, which are not able to hold water.' 2 He says, then, that this fount is with the Father, according to the teaching of the Gospel, 'I am in the Father and the Father is in me.' 3 'In your light we see light.' For illuminated by the Holy Spirit we look on the rays of the Only Begotten. 'No one is able to say 'Lord Jesus' unless in the Holy Spirit.' 4 And: 'God has been made manifest to us by His Spirit.' 5 Therefore we learn exactly through the prophetic words the three persons of the Divine union. Theodoret of Cyrrhus, Interpretation of the Psalms, from Psalm 35 1 Ps 35.9 2 Jerem 2.13 3 Jn 14.10 4 1 Cor 12.3 5 1 Cor 2.10