Matthew 11:14

And if ye are willing to receive it, this is Elijah, that is to come.

Malachi 4:5

Behold, I will send you Elijah the prophet before the great and terrible day of Jehovah come.

Matthew 17:10-13

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

Mark 9:11-13

And they asked him, saying, How is it that the scribes say that Elijah must first come?

Luke 1:17

And he shall go before his face in the spirit and power of Elijah, to turn the hearts of the fathers to the children, and the disobedient to walk in the wisdom of the just; to make ready for the Lord a people prepared for him .

Ezekiel 2:5

And they, whether they will hear, or whether they will forbear, (for they are a rebellious house,) yet shall know that there hath been a prophet among them.

Ezekiel 3:10-11

Moreover he said unto me, Son of man, all my words that I shall speak unto thee receive in thy heart, and hear with thine ears.

John 1:21-23

And they asked him, What then? Art thou Elijah? And he saith, I am not. Art thou the prophet? And he answered, No.

John 16:12

I have yet many things to say unto you, but ye cannot bear them now.

1 Corinthians 3:2

I fed you with milk, not with meat; for ye were not yet able to bear it : nay, not even now are ye able;

Revelation 20:4

And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that had been beheaded for the testimony of Jesus, and for the word of God, and such as worshipped not the beast, neither his image, and received not the mark upon their forehead and upon their hand; and they lived, and reigned with Christ a thousand years.

Treasury of Scripture Knowledge

Summary

And if ye will receive it, this is Elias, which was for to come.

General references

Bible References

If

Ezekiel 2:5
And they, whether they will hear, or whether they will forbear, (for they are a rebellious house,) yet shall know that there hath been a prophet among them.
Ezekiel 3:10
Moreover he said unto me, Son of man, all my words that I shall speak unto thee receive in thy heart, and hear with thine ears.
John 16:12
I have yet many things to say unto you, but ye cannot bear them now.
1 Corinthians 3:2
I fed you with milk, not with meat; for ye were not yet able to bear it : nay, not even now are ye able;

General references

Mark 9:11
And they asked him, saying, How is it that the scribes say that Elijah must first come?

American Standard Version Public Domain