Lucifer watches Aziraphale go flying, and there is satisfaction to be gained from disciplining a mouthy, insubordinate angel. He may not be Aziraphale's direct superior, per se, but he is an archangel, and he deserves more respect than he has been shown.

And speaking of the insubordinate... there is a fallen angel next to him that seems unable to grasp the concept of staying quiet. Really, it's so hard to find good help these days.

"What part of be silent escapes you?"

His Grace flares up again, freezing cold and implacable, and he sweeps his hand back smoothly towards Crowley. The blow this time is not directed outward but rather down, towards the earth, like the angle of a parent striking an unruly child. The Devil does not pull his punches; this one lands like the fist of an angry god, which is more or less close enough.