The phrase "in their devotion" is correct and can be used in written English.
For example, you could say "The members of the community showed their selfless dedication in their devotion to the cause."
The Chiefs are not alone in their devotion to secrecy.
Monkish in their devotion, they lived in cheap apartments and practiced through the night.
So it does create a community, and podcast fans can be cult-like in their devotion.
Yet they have been unwavering in their devotion to each other.
They become known as the Fab Four, almost cultlike in their devotion to one another.
The humor in their devotion to the project wasn't lost on Ms. Bernett.
Christians often light a purple candle, sometimes called the candle of prophecy or hope in their devotions during this week.
As a result, the symbolic power of representing barefoot doctors rested in showcasing their devotion to enhancing access to health care in rural China.
It has since become a popular place of worship for drug traffickers and criminals, as well as some who are not involved in illegal activities but still say he grants them favors in exchange for their devotion.
A young woman across the room seemed engaged in the same exercise as me, and I watched her assessing her surroundings, seeing in her eyes a cautious curiosity about these people absorbed in sounds of their devotion.
She let herself feel loved, in love, immersed in their particular devotion, however fleeting.
