The Big Church Day Out aims to bring together people of all ages and denominations for two days of music and worship in West Sussex.
Jules Rendell is performing and told Premier's Inspirational Breakfast how God is shown through her music.
She said: "It's very soulful, a little bit jazzy and it's very honest I think.
"I try and write quite poetic lyrics about real things, and it also kind of reflects my relationship with God in the way I right."
Two days to go til BCDO! Thanks @CSW_UK for hosting the Airstream stage at @BigChurchDayOut I'm on at 5! Say hello! pic.twitter.com/G7FYBi9Rnx
— Jules Rendell (@julesrendell) May 26, 2016
However she admitted she thought having a Gospel message could put people off: "Ten years ago when I started I did think, 'gosh, if I say too much about God, about Jesus, then noone's going to want to listen to it.
"But actually I found as a I got older that people are interested, and it's just about sharing your heart and being honest."
The festival brings together the wider church as well as non-believers.
Performers include Tim Hughes, Matt Redman, Faith Child and Guvna B.
See @matt_redman at #BCDO this weekend! Online ticket sales end at midnight tonight! Tickets available on the gate pic.twitter.com/u48LzTAveg
— BigChurchDayOut (@BigChurchDayOut) May 26, 2016
Listen to Premier's Inspirational Breakfast speak to Jules Rendell here:
