Malachi 4:5

Behold, I will send you Elijah the prophet: before the coming of the day of the great and fearful LORD.

Luke 1:17

And he shall go before him in the spirit and power of Elijah, to turn the hearts of the fathers to their children, and the unbelievers to the wisdom of the just men: to make the people ready for the Lord."

Joel 2:31

The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the LORD come.

Malachi 3:1

Behold, I send my messenger which shall prepare the way before me. And suddenly shall the Lord whom ye seek, come unto his temple, and the messenger of the covenant whom ye desire. Behold, he cometh saith the LORD Sabaoth.

Isaiah 40:3

A voice crieth in the wilderness, "Prepare the way for the LORD, make straight the path for our God in the desert.

Malachi 4:1

For mark, the day cometh that shall burn as an oven: and all the proud, yea and all such as do wickedness, shall be straw: and the day that is for to come, shall burn them up, sayeth the LORD of Hosts, so that it shall leave them neither root nor branch.

Matthew 17:10-13

And his disciples asked of him, saying, "Why then say the scribes, that Elijah must first come?"

Mark 9:11-13

And they asked him, saying, "Why then Say the scribes, that Elijah must first come?"

John 1:21

And they asked him, "What then? Art thou Elijah?" And he said, "I am not." Art thou that prophet? And he answered, "No."

Revelation 6:17

for the great day of his wrath is come; And who can endure it?"

Matthew 11:13-14

and they that go to it with violence pluck it unto them. For all the prophets and the law prophesied unto the time of John.

Matthew 27:47-49

Some of them that stood there, when they heard that said, "This man calleth for Elijah."

Luke 7:26-28

But what went ye forth to see? A prophet? Yea I say to you, and more than a prophet.

Luke 9:30

And behold, two men talked with him, and they were Moses and Elijah,

John 1:25

And they asked him, and said unto him, "Why baptisest thou then, if thou be not Christ, nor Elijah, neither a prophet?"

Acts 2:19-20

And I will show wonders in heaven above, and tokens in the earth beneath, blood and fire, and the vapour of smoke.

Treasury of Scripture Knowledge

Summary

Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD:

Bible References

I will

Malachi 3:1
Behold, I send my messenger which shall prepare the way before me. And suddenly shall the Lord whom ye seek, come unto his temple, and the messenger of the covenant whom ye desire. Behold, he cometh saith the LORD Sabaoth.
Isaiah 40:3
A voice crieth in the wilderness, "Prepare the way for the LORD, make straight the path for our God in the desert.
Matthew 11:13
and they that go to it with violence pluck it unto them. For all the prophets and the law prophesied unto the time of John.
Matthew 17:10
And his disciples asked of him, saying, "Why then say the scribes, that Elijah must first come?"
Matthew 27:47
Some of them that stood there, when they heard that said, "This man calleth for Elijah."
Mark 9:11
And they asked him, saying, "Why then Say the scribes, that Elijah must first come?"
Luke 1:17
And he shall go before him in the spirit and power of Elijah, to turn the hearts of the fathers to their children, and the unbelievers to the wisdom of the just men: to make the people ready for the Lord."
Luke 7:26
But what went ye forth to see? A prophet? Yea I say to you, and more than a prophet.
Luke 9:30
And behold, two men talked with him, and they were Moses and Elijah,
John 1:21
And they asked him, "What then? Art thou Elijah?" And he said, "I am not." Art thou that prophet? And he answered, "No."

General references

Zechariah 14:1
Behold, the day of the LORD cometh, that thou shalt be spoiled and robbed.
Matthew 11:10
For this is he, of whom it is written, 'Behold, I send my messenger before thy face which shall prepare thy way before thee.'
Mark 9:11
And they asked him, saying, "Why then Say the scribes, that Elijah must first come?"
Acts 2:19
And I will show wonders in heaven above, and tokens in the earth beneath, blood and fire, and the vapour of smoke.