To lose God's favour through sins or wrongdoings(verb)
To fall from one's current social position to something lower, to lose one's prestige, status or power.(verb)
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Use "fall from grace" in a sentence
"My punishment, Sister Sherrie’s scrawled plea for help, and my mother’s fall from grace upon Marcie Barton’s arrival had shown me what was true and what was false."
"Take the fall from grace in Basra: he’d had to have seen it coming, read the signs, and had plenty of time to back down or readjust—that’s the way the military worked, after all—but he insisted on his way with the aggressive interrogations and the ever-climbing kill count."