Kris Jenner sends her family a Bible verse every morning.

The 62-year-old matriarch has a text group with her children - which includes daughters Kim Kardashian West, Khloe and Kourtney Kardashian, and Kylie and Kendall Jenner, and son Rob Kardashian - and the whole clan are ''really religious'' and dedicated to their Christian faith.

Kim said: ''We don't share it much, but we're really religious. We start our day with a group chat with a Bible verse from my mom, and everyone chimes in on the meaning of it.

''We are very Christian - and our work ethic and our discipline comes from so many years at Catholic school.''

And Kim - who has children North, four, Saint, two, and four-month-old Chicago with husband Kanye West - credits her education at the all-girls Marymount High School in Los Angeles for instilling many of the values she lives by as an adult.

She told ''I had an amazing Catholic school experience. It's very strict, very punctual, and I like that--it's how I've lived my life.''

The 'Keeping Up With the Kardashians' star had a ''typical preppy'' look when she was at school, and though she followed the rules, she couldn't resist making her uniform shorter, much to the annoyance of her teachers.

She admitted: ''I stuck to the rules, except for my really short skirt--I was always getting into trouble for that. I was, like, full-on 'Clueless'.''

Last month, Kim was excited to attend a high school reunion in honour of the 20 years since her senior year.

She said in a clip posted on her Instagram Story: ''So my friends are worried that we're gonna run into people that they were mean to and I feel so good about my conscience that I was so nice to everyone.''

At the reunion, the 37-year-old reality star showed off her year books and posed for photos with her classmates, and though she was having a good time, she admitted it felt ''crazy'' to be back at school.

She said in another clip: ''We are walking down the same halls that we walked 20 years ago, this is crazy!''