(In the day when Allah gathereth together the messengers) this is on the Day of Judgement, (and saith) in some place, at the time of bedazzlement: (What was your response (from mankind)) how did people respond to you? (They say) due to the intensity of the situation, which is that place: (We have no knowledge. Lo! Thou, only Thou art the Knower of Things Hidden) i.e. that which is hidden from us of the response of people. But later, they answer and testify that they have delivered the message to their people.