Come hell or high water.
Come hell or high water.
The idiom 'Come hell or high water' is a colorful way to express steadfast determination and commitment to completing a task or maintaining a position, regardless of the difficulties or obstacles that may arise. It evokes imagery of enduring through not just one, but two major calamities - either infernal chaos, reminiscent of 'hell', or disastrous flooding ('high water'). Originally, it possibly referred to the kind of obstacles that could not stop a mail coach from delivering the mail in the old days. Today, you might use it when you’re determined to reach a goal, like graduating from college, come hell or high water, even if it means overcoming financial hardships or other significant barriers.
Come hell or high water, we'll finish this project.
No matter what obstacles arise, we'll complete this project.
She said she'd be there, come hell or high water, and she meant it.
She promised she'd be there no matter what challenges occurred, and she meant it.
They vowed to complete their journey, come hell or high water.
They promised to complete their journey no matter what difficulties they faced.