The aunt of missing University of Iowa student Mollie Tibbetts shared a video of her niece speaking at a faith event in 2016.

Billie Jo Calderwood posted the video of Tibbetts speaking at her high school about how her trust in God helped calm her nerves before an important track meet.

"I had no idea what to do," Tibbetts said in the video. "I was so scared."

She went on to explain how she got down on her knees to pray for the first time.

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In the video, Tibbetts then said that during the race God was on her mind the entire time, and that she wound up running her best time all season.

Tibbetts has been missing for three weeks after being last seen on July 18 in the city of Brooklyn, Iowa.

Her father told Fox News on Tuesday that it's "logical" his daughter is with someone and implored whoever that person is to give her up.

UPDATE: The body of missing college student Mollie Tibbetts was found Tuesday August 21, two sources told Fox News.

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