Matthew Poole and continuators on Acts 10:29

29 Therefore came I unto you without gain-saying, assoon as I was sent for : I ask therefore, for what intent ye have sent for me?

Or delay.

Peter did in a great measure know the business he came about, partly by the vision, and its interpretation; partly, by what he might have heard from them, that Cornelius sent for him, unto whom Cornelius had declared the whole matter, as we find verse 8. yet Peters question is but necessary, for to give Cornelius an opportunity to acquaint his friends, who were met there, with all that had passed.