6. They will return at evening. He compares his enemies to famished and furious dogs which hunger impels to course with endless circuits in every direction, and under this figure accuses their insatiable fierceness, shown in the ceaseless activity to which they were instigated by the desire of mischief. He says that they return in the evening, to intimate, not that they rested at other times, but were indefatigable in pursuing their evil courses. If they came no speed through the day, yet the night would find them at their work. The barking of dogs aptly expressed as a figure the formidable nature of their assaults.