The devil is not always at one door.

Trouble does not stay with one person or household. Someone spared a difficulty today may have to face it another time.

The proverb cautions against thinking of another person's hardship as theirs alone. Circumstances can change, and anyone may need help in turn.

Use this proverb to encourage sympathy when someone treats another person's troubles as remote from their own life. It can also warn against assuming that present good fortune will last.