The sick man answered him, "Sir, I have no one to put me into the pool when the water is stirred up, but while I'm coming, another steps down before me."
And He begins to talk to them now, emphasizing what He's saying with these words verily, verily. And the repetition of the word is for emphasis, it's, "Alright, now hear this." I mean, it's really calling their attention to what I'm about to say.