‘Therefore keep watch, because you do not know on what day your Lord will come… So you also must be ready, because the Son of Man will come at an hour when you do not expect him.’ Matthew 24:42-44

Jesus gives this advice during his final days in Jerusalem. He’s got his immanent death on his mind. Beyond that, he’s thinking about the end of the world and his second coming – the date is unknown, but it’s on the way. So Jesus says, repeatedly, to keep watch and be ready.

This reminds me of the time o...