Meaning offor heaven's sakein English

Adverb

1. expressing frustration; urgency
   For heaven's sake, can you please hurry up?
   Synonyms:

   for goodness' sakefor Pete's sakefor crying out loudgood griefcome on
   Antonyms:

   take your timeno rushrelaxcalm downbe patient
2. conveying surprise; astonishment
   I'm shocked, for heaven's sake, how could you do that?
   Synonyms:

   good griefgoodness graciousfor goodness' sakefor Pete's sakefor crying out loud