And John called to him two of his disciples, and sent them to Jesus, saying: Art thou he that art to come; or look we for another?

and John, having called two of his disciples, sent to Jesus, saying, Art thou he that is coming, or are we to wait for another?

and John having called near a certain two of his disciples, sent unto Jesus, saying, 'Art thou he who is coming, or for another do we look?'

so John called two of his disciples and sent them to the Lord. "Are you the Coming One?" he asked, "or is there another that we are to expect?"

Then John sent two of his disciples to the Lord, saying, Are you he who is to come, or are we waiting for another?

And John called two of his disciples, and he sent them to Jesus, saying, "Are you he who is to come, or should we wait for another?"

So he summoned two of them, and sent them to the Master to ask – "Are you 'the coming one,' or are we to look for someone else?"

See this passage explained in Matthew. 11:2-19.

Art thou he that should come? - That is, to save. Art thou the promised Messiah? See on Matthew 11:3 (note).
Some have thought that this character of our Lord, ὁ ερχομενος, he who cometh, refers to the prophecy of Jacob, Genesis 49:10, where he is called שילה Shiloh, which Grotius and others derive from שלה shalach, he sent: hence, as the time of the fulfillment of the prophecy drew nigh, he was termed, He who cometh, i.e. he who is just now ready to make his appearance in Judea. In Zac 9:9, a similar phrase is used, Behold, thy king Cometh unto thee - having Salvation. This is meant of the Messiah only; therefore I think the words to save, are necessarily implied.

And John calling unto him two of his disciples,.... Which were a sufficient number to be sent on an errand, to ask a question, and report the answer, or bear witness to any fact they should see, or hear done.
Sent them unto Jesus, saying, art thou he that should come, or look we for another? not that he doubted that Jesus was the Messiah; nor was it for his own satisfaction so much that he sent these disciples of his with this question, but for theirs; and to remove all doubt and hesitation from them about Christ.

To his miracles in the kingdom of nature, Christ adds this in the kingdom of grace, To the poor the gospel is preached. It clearly pointed out the spiritual nature of Christ's kingdom, that the messenger he sent before him to prepare his way, did it by preaching repentance and reformation of heart and life. We have here the just blame of those who were not wrought upon by the ministry of John Baptist or of Jesus Christ himself. They made a jest of the methods God took to do them good. This is the ruin of multitudes; they are not serious in the concerns of their souls. Let us study to prove ourselves children of Wisdom, by attending the instructions of God's word, and adoring those mysteries and glad tidings which infidels and Pharisees deride and blaspheme.