John 9:36

"Tell me who he is, Sir," he replied, "so that I may believe in him."

Romans 10:14

But how, it may be asked, are they to invoke one in whom they have not learned to believe? And how are they to believe in one whose words they have not heard? And how are they to hear his words unless some one proclaims him?

Matthew 11:3

And asked--" Are you 'The Coming One,' or are we to look for someone else?"

John 1:38

But Jesus turned round, and saw them following. "What are you looking for?" he asked. "Rabbi," they answered (or, as we should say, "Teacher"), "where are you staying?"

Treasury of Scripture Knowledge

Summary

He answered and said, Who is he, Lord, that I might believe on him?

Bible References

Who

John 1:38
But Jesus turned round, and saw them following. "What are you looking for?" he asked. "Rabbi," they answered (or, as we should say, "Teacher"), "where are you staying?"
Matthew 11:3
And asked--" Are you 'The Coming One,' or are we to look for someone else?"