A court heard how former children's pastor, Anthony Waller, attacked the youngsters in the bathroom of the First Assembly of God Church in Jonesboro, where he was working at the time, and at other locations.
The alarm was raised by the 39-year-old's wife, Angela, who, after discovering a collection of child pornography on their laptop, confronted Mr Waller and contacted police.
Praising Mrs Waller's actions, Detective Brandon King of the Jonesboro Police Department told WMC Action News 5 in May last year: "She's just as caught off guard as anyone else.
"She's very hurt and very upset and honestly had no idea that anything was going on. She said it's a roller coaster, which would be expected."
One police officer reported finding holes in the ceiling of the bathroom at the church and a place for a secret camera nearby.
Anthony Waller, who began working at the First Assembly of God Church in Jonesboro in 1999, also faces 50 counts of video voyeurism and one count of child pornography.