Aziraphale didn't reply to Gabriel. He wasn't sure what to say. There was a good deal he didn't know about how Gabriel had spent two millennia, but he had several fairly good guesses.

His thoughts were about to start running in a parallel direction to Gabriel's when suddenly the archangel tripped and Aziraphale, relying on the instincts of his delicate, social, human body and his own absurd desire to see Gabriel safe, grabbed onto the archangel's elbow again, another hand steadying his shoulder.