This too shall pass (away) expression informal cliché
This phrase is frequently used to encourage someone by reminding them that a poor situation will ultimately come to an end.
Nothing lasts forever.
I know you are depressed about your divorce. Just smile and this too shall pass.
Don't worry. Just toe the mark, and this too shall pass.
To punish someone or something harshly
This idiom is often used to express that you should accept an unpleasant situation or event because you cannot change it.
Once something has been done, you can do nothing but face the consequences.