Luke 1:17

17Andκαὶheαὐτὸςwill go forthπροελεύσεταιbeforeἐνώπιονHimαὐτοῦinἐν[the] spiritπνεύματιandκαὶpowerδυνάμειof ElijahἨλίου,to turnἐπιστρέψαι[the] heartsκαρδίαςof [the] fathersπατέρωνtoἐπὶ[the] childrenτέκναandκαὶ[the] disobedientἀπειθεῖςtoἐν[the] wisdomφρονήσειof [the] righteousδικαίων,to make readyἑτοιμάσαιfor [the] Lordκυρίῳa peopleλαὸνpreparedκατεσκευασμένον.

And he will go on before Him in the spirit and power of Elijah, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the righteous—to make ready a people prepared for the Lord.”