On many Sundays, Loretta Lynn sent her social-media followers a thought for the day from Scripture.

Two days before her death at her ranch in Hurricane Mills, Tenn., the 90-year-old country-music legend posted two verses, repeating the second verse to stress her point.

Lynn's final Instagram post said: "Everyone who does evil hates the light, and will not come into the light for fear that their deeds will be exposed. But whoever lives by the truth comes into the light, so that it may be seen plainly that what they have done has been done in the sight of God. John 3:20-21"

The feisty superstar experienced plenty of darkness and light and shared the gritty details in a career that changed the role of women in Nashville. Lynn was raised poor in the Kentucky hills and spent years in church pews before she started singing in honky-tonks. Her husband Oliver "Dolittle" Lynn struggled with alcoholism, but they stuck together in a union that inspired songs about love and loyalty, as well as break-ups and fist fights, such as "Don't Come Home A-Drinkin' (With Lovin' On Your Mind)."

Lynn vowed to tell the truth about both sides of her life. She loved to sing hymns and gospel music, while critics hailed the rhinestone feminism of her hits such as "You Ain't Woman Enough," "The Pill," "Rated X" and "You're Looking at Country."

In her "Coal Miner's Daughter" memoir, Lynn described her faith journey: "I believed it all, but for some reason, I was never baptized. After I started in music, I got away from going to church and reading the Bible. I believe I was living the way God meant me to, but I wasn't giving God the right attention."

In that same 1976 memoir, she added: "I'm trying to lead a good Christian life, especially since I got baptized two years ago. So there ain't too much spicy to tell about me -- just the truth." Christian Chronicle editor Bobby Ross, Jr., noted that she later added a strong kicker to that: "Nobody's perfect. The only one that ever was, was crucified.”

Anyone who explored the details of Lynn's life and music knew that she wasn't a good fit in the "elite feminist establishment" or among advocates of a "status-quo idea of domesticity," noted Russell Moore, Christianity Today's editor in chief.