Community, a group calling to good, a span of time, even a model, as Abraham was: the word ummah carries all these meanings in these verses. They recall that every community was sent a messenger and given a rite, describe the balanced community that bears witness over mankind, and mention communities other than humans and the unity on which the ummah rests.
Verses gathered from a topical index of the Quran, in Mushaf order; every verse is quoted in full.
And if We hold back from them the punishment for a limited time, they will surely say, "What detains it?" Unquestionably, on the Day it comes to them, it will not be averted from them, and they will be enveloped by what they used to ridicule.