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Interjections usually appear at the beginning of a sentence or clause and are grammatically disconnected from the rest of the sentence. As in many languages, interjections are often "natural sounds", that is, vocal gestures or sounds that a person utters when experiencing certain emotions. Interjections can be used to express both positive and negative emotions.
A directive interjection expresses a command such as "look!" (reference) or "come!" (John 1:29). Some common directive interjections in Koiné Greek include the terms ιδου, δευτε, δευρο (perhaps others?).
Ἴδε ὁ ἀμνὸς τοῦ θεοῦ ὁ αἴρων τὴν ἁμαρτίαν τοῦ κόσμου Ide ho amnos tou theou ho airōn tēn hamartian tou kosmou See the lamb of the God who is taking away the sin of the world Look (there is) the lamb of God who takes away the sin of the world
