New Revised Standard Version
So Peter went down to the men and said, “I am the one you are looking for; what is the reason for your coming?”

Contemporary English Version
Peter went down and said to the men, "I am the one you are looking for. Why have you come?"

New American Bible
Then Peter went down to the men and said, “I am the one you are looking for. What is the reason for your being here?”

Douay-Rheims Bible
Then Peter, going down to the men, said: Behold, I am he whom you seek. What is the cause for which you are come?

Then Peter, going down to the men, said: Behold, I am he whom you seek. What is the cause for which you are come?

Behold.

John 1:38,39 And Jesus turning and seeing them following him, saith to them: What seek you? Who said to him: Rabbi (which is to say, being interpreted, Master), where dwellest thou? . . .

John 18:4-8 Jesus therefore, knowing all things that should come upon him, went forth and said to them: Whom seek ye? . . .

what.

Acts 10:29 For which cause, making no doubt, I came when I was sent for. I ask, therefore, for what cause you have sent for me?

Mark 10:51 And Jesus answering, said to him: What wilt thou that I should do to thee? And the blind man said to him: Rabboni. That I may see.