falter in

falter in something

to fail in doing something; to exhibit a lack of something, such as faith, loyalty, perseverance, etc. He did not falter in his effort to see the project through to the end. I promised not to falter in my loyalty.
References in classic literature ?
But strangely enough I did not falter in my allegiance to him, or realize that here in this free form was a deliverance, if I liked, from the fetters and manacles which I had been at so much pains to fit myself with.
Did I falter in my resolution to marry her, now that I had discovered what the obstacle was which had made mystery and wretchedness between us?
Simple sermons, that went straight to the souls of those who listened, for the father's heart was in the minister's religion, and the frequent falter in the voice gave a double eloquence to the words he spoke or read.
Housing markets may falter in areas that experience increased successive hurricanes over a short period of time, according to the October 2001 issue of The Appraisal Journal, the professional journal of the appraisal industry.
That's why I think it's unacceptable to create a precedent whereby the Chief Inspector, who lays down demanding standards for others, should falter in meeting her own targets.