Apolytikion for Pentecost - Trinity Sunday
Εύλογητός εἶ Χριστὲ ὁ Θεος ἡμῶν ὁ πανσόφους τοὺς ἁλιεῖς ἁναδείξας καταπέμψας αὐτοῖς τὸ Πνεῦμα τὸ ἅγιον καὶ δι᾽ αὐτῶν τῆν οἰκουμένην σαγηνεύσας φιλάνθρωπε δόξα Σοι.

Apolytikion of the Church
Beloved Apostle of Christ our God, hasten to deliver a people without defense. He who permitted you to recline upon His bosom, accepts you on bended knee before Him. Beseech Him, O Theologian, to dispel the persistent cloud of nations, asking for us peace and great mercy. -Translation by Narthex Press

Kontakion
When the Most High came down and confounded tongues of men (Babel), He divided the Nations. When He dispensed the Tongues of Fire, He called all to unity, and with one voice we glorify the Most Holy Spirit. - Translation by Narthex Press