behold. Greek. idou. App-133.
came upon. stood over.
light. Greek. phos. App-130.
prison. Greek. oikema, dwelling. Only here. The Revised Version reads "cell". That was Peter's dwelling-place. The angel of the Lord there.
Peter on the side. Peter's side.
raised... up. Greek. egeiro. App-178.
Arise up. Greek. anistemi. App-178.
quickly. in (Greek. en) or with speed.