God rest his/her soul

(God) rest his/her/their soul

May this person find peace in the afterlife. My dear father, God rest his soul, worked his whole life so that we would have the opportunities he never had growing up. My grandmother was only 59 when she passed, rest her soul.
See also: rest, soul
Farlex Dictionary of Idioms.

God ˌrest his/her ˈsoul

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God ˈrest him/her

(old-fashioned, spoken) used to show respect when you are talking about somebody who is dead: My grandfather, God rest his soul, would never think of leaving the house without a suit and tie on.
See also: god, rest, soul
Farlex Partner Idioms Dictionary
See also:
  • (God) rest his/her/their soul
  • God rest soul
  • eternal
  • eternal life
  • (those) whom the gods love die young
  • whom
  • Whom the gods love die young
  • the dear knows
  • dear to (one's) heart
  • know all the answers