Temporary vs. Eternal

فَذَرْهُمْ يَخُوضُوا۟ وَيَلْعَبُوا۟ حَتَّىٰ يُلَـٰقُوا۟ يَوْمَهُمُ ٱلَّذِى يُوعَدُونَ

So leave them to converse vainly and amuse themselves until they meet their Day which they are promised -