The Trinitarian formula is the phrase "in the name of the Father, and of the Son, and of the Holy Spirit" (Koinē Greek: εἰς τό ὄνομα τοῦ Πατρὸς καί τοῦ Υἱοῦ καί τοῦ Ἁγίου Πνεύματος, romanized: eis tó ónoma toû Patrós kaí toû Huioû kaí toû Hagíou Pneúmatos; Latin: in nomine Patris et Filii et Spiritus Sancti), or words to that form and effect, referring to the three persons of the Christian Trinity. It is often followed by an "amen".