And there were many lights - Why this circumstance is mentioned is not apparent. It, however, meets one of the slanders of the early enemies of Christianity, that the Christians in their assemblies were accustomed to extinguish all the lights, and to commit every kind of abomination. Perhaps the mention of many lights here is designed to intimate that it was a place of public worship, as not only the Jews, but the Gentiles were accustomed to have many lights burning in such places.
In the upper chamber - See the notes on Acts 1:13.