Though Kris Kristofferson is credited as a co-writer, he claims he didn't write the gospel-influenced song. Kristoffersen admitted in the book 1000 UK #1 Hits
"I never sing the song because I didn't write it. Marijohn Wilkin was the first publisher I worked for and she published 'For The Good Times' and 'Darby's Castle.' She was a good songwriter herself and I was in the room when she was writing 'One Day At A Time' and I might have given her a line or two. If I studied the lyrics, I might find a phrase of mine but I think she wrote the whole song and I remember her singing it to me. Marijohn was paying me back for some of the songs I had written for her - it was her way of saying 'Thank you.' I've done it myself. I've given a lot of people who've never written a word a piece of one of my songs."