﴿ إِلَّا رَحْمَةًۭ مِّنَّا وَمَتَٰعًا إِلَىٰ حِينٍۢ ﴾

“unless it be by an act of mercy from Us and a grant of life for a [further span of] time.”

except by a mercy from Us and for an enjoyment until some time in other words they can only be saved by Our showing them mercy and Our permitting them to enjoy those pleasures of theirs until their terms of life are concluded.