Matthew 11:14

And if you will receive it, this is Elijah, who was to come.

Matthew 17:10-13

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

Mark 9:11-13

And they asked him, saying, Why do the scribes say 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 fathers to children, and the disobedient to the wisdom of the righteous, to make ready a people prepared for the Lord.

John 1:21-23

And they asked him, What then? are you Elijah? And he said, I am not. Are you the prophet? And he answered, No.

John 16:12

I have many things yet to say to you, but you cannot bear them now;

1 Corinthians 3:2

I have fed you milk, not solid food; for you were not yet able; but you are not able even now;

Revelation 20:4

And I saw thrones, and they sat on them, and judgment was given them, and the souls of those who have been beheaded for the testimony of Jesus and the word of God, and who did not worship the beast nor his image and did not receive the mark on their forehead and on their right 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

John 16:12
I have many things yet to say to you, but you cannot bear them now;
1 Corinthians 3:2
I have fed you milk, not solid food; for you were not yet able; but you are not able even now;

General references

Mark 9:11
And they asked him, saying, Why do the scribes say that Elijah must first come?