ET us, therefore, not think that it is words we are taught to say in any appointed season of prayer. On the contrary, if we understand our former consideration of prayer without ceasing, let our whole life <be a life> of prayer without ceasing <and let our whole life> speak the words Our Father in the Heavens (Matt. 6.9), having its commonwealth in no wise on earth but in every way in heaven, which is God's throne because of the foundation of the kingdom of God in all who wear the image of the Heavenly One and therefore become heavenly. 

Our Father which art in heaven - The Lord's Prayer, narrated by Elli Lampeti

ἀδιαλείπτως προσεύχεσθαι

Mὴ λέξεις τοίνυν νομίσωμεν διδάσκεσθαι λέγειν ἡμᾶς ἔν τινι ἀποτεταγμένῳ τοῦ εὔχεσθαι καιρῷ· ἀλλ΄ εἰ συνίεμεν τῶν ἡμῖν προεξετασθέντων εἰς τὸ ἀδιαλείπτως προσεύχεσθαι͵ πᾶς ἡμῶν ὁ βίος ἀδιαλείπτως προσευχομένων λεγέτω τό· Πάτερ ἡμῶν ὁ ἐν τοῖς οὐρανοῖς͵ τὸ πολίτευμα ἔχων οὐδαμῶς ἐπὶ γῆς ἀλλὰ παντὶ τρόπῳ ἐν οὐρανοῖς͵ θρόνοις τυγχάνουσι τοῦ θεοῦ διὰ τὸ ἱδρῦσθαι τὴν τοῦ θεοῦ βασιλείαν ἐν πᾶσι τοῖς φοροῦσι τὴν εἰκόνα τοῦ ἐπουρανίου καὶ διὰ τοῦτο γενομένοις ἐπουρανίοις. 

Cf. PETER DAMASCENE : What is true faith? ||| GREGORY THE THEOLOGIAN : God is a God of the present ||| BASIL THE GREAT : We must strive after a quiet mind ||| MACARIUS THE GREAT : Overcome by Heavenly Desire ||| GREGORY PALAMAS : Calling everything near Him