Emphasis Preaching Journal

It is among the oldest and most durable of the old vaudeville routines. Groucho and Chico Marx were especially good at it and brought it to the screen. The two of them are standing at an open door. "After you," says one to the other, bowing genteelly. "No, I insist, after you," after which the other repeats the same routine, over and over again, in a cycle that can go on for as long as the laughter continues.

There's a little of the same flavor in the dialogue between the Lord and David in 2 Samuel 7. "I will build you a house," declares David.