Malachi 4:5

5 aBehold, I will send you bElijah the prophet cbefore the great and awesome day of the Lord comes.

Matthew 17:10-13

10And the disciples asked him, “Then why do the scribes say dthat first Elijah must come?” 11He answered, Elijah does come, and ehe will restore all things. 12But I tell you that Elijah has already come, and they did not recognize him, but fdid to him whatever they pleased. gSo also the Son of Man will certainly suffer at their hands.” 13 hThen the disciples understood that he was speaking to them of John the Baptist.

Mark 9:11-13

11And they asked him, “Why do the scribes say ithat first Elijah must come?” 12And he said to them, Elijah does come first jto restore all things. And khow is it written of the Son of Man that he should lsuffer many things and mbe treated with contempt? 13But I tell you that Elijah has come, and nthey did to him whatever they pleased, as it is written of him.”

Luke 1:17

17and ohe will go before him pin the spirit and power of Elijah, qto turn the hearts of the fathers to the children, and rthe disobedient to the wisdom of the just, sto make ready for the Lord a people prepared.”

John 1:21-23

21And they asked him, “What then? tAre you Elijah?” He said, “I am not.” “Are you uthe Prophet?” And he answered, “No.” 22So they said to him, “Who are you? We need to give an answer to those who sent us. What do you say about yourself?” 23He said, “I am vthe voice of one crying out in the wilderness, ‘Make straight
Or  crying out, ‘In the wilderness make straight
the way of the Lord,’ as the prophet Isaiah said.”

Revelation of John 20:4

4Then I saw xthrones, and yseated on them were those to whom the authority to judge was committed. Also I saw zthe souls of those who had been beheaded for the testimony of Jesus and for the word of God, and those aawho had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. abThey came to life and acreigned with Christ for a thousand years.
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