From the moment that Jinger Duggar announced that she’d written a memoir, fans have been speculating about how her famously private family would react to the news.

Thus far, Jinger’s parents, Jim Bob and Michelle Duggar, have yet to speak out on the matter.

But not surprisingly, insiders say the patriarch and matriarch are deeply concerned about how they’ll be portrayed in their daughter’s literary debut.

In fact, the couple has reportedly devised a plan for how they might deal with any damaging allegations that Jinger makes in the book.

And considering these two previously disowned Jinger just for moving to Los Angeles with her husband, you can be sure that they’re not planning any half-measures.

The good news for Jim Bob and Michelle is that the book will reportedly be less focused on her relationships with her family than with the spiritual journey that she’s undergone in recent years.

It’s true, insiders say, that Jinger has abandoned many of the beliefs that she was raised with, but that’s not because of any ill will toward her parents.

Apparently Jinger credits a brother-in-law “who didn’t grow up in the same tight-knit conservative circle” with encouraging her to question the core tenets of her family’s faith.

Jinger did so and concluded that the religion she was raised with was too focused on “rules, not God’s Word.”

Even though it sounds like the memoir will focus primarily on the author’s spiritual journey, Jim Bob and Michelle are said to be concerned that they’ll come off as manipulative or abusive.

“Jim Bob and Michelle aren’t thrilled by Jinger’s book coming out, but they are hoping for the best,” a source close to the situation tells In Touch.

“They’re not sure of all the topics she’ll cover, but they have prayed about it and hope that it’s honest, respectful and doesn’t dredge up too much of their family troubles.”

Even though they’ve reportedly received reassurances about the book’s content, Jim Bob and Michelle are still reportedly “bracing themselves” for the worst.

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“It’s no secret that Jim Bob and Michelle would rather all their children keep family matters private,” the insider continues.

“A tell-all book from one of their own isn’t something they ever worried about, until now.”

Jinger has spent the past three years living in LA, and her parents reportedly fear that they don’t know much about her beliefs or values these days.

“They feel that Jinger and Jeremy have changed and that the book is bound to touch on some controversial family issues,” the insider adds.

“Another concern is that Jinger will most likely promote the book and do interviews and Jim Bob and Michelle worry about the questions she’ll be asked and how she’ll answer. It’s definitely a tense time.”

Jim Bob and Michelle are said to be fearful of whatever outside influence (fans suspect that it’s Jill’s husband Derick Dillard) led Jinger to question her beliefs, but in the source says they’re also confident that they won’t be betrayed.

“Even though they don’t agree with all their life choices, they still love Jinger and Jeremy,” the source notes.

“Jim Bob and Michelle are bracing themselves and just praying that while Jinger was writing the book she stayed true to their family’s core values.”

They seem confident now — but we’ll see how they feel after the book comes out!

Jim Bob & Michelle Duggar Brace for Jinger’s Memoir: We’ll Disown Her … was originally published on The Hollywood Gossip .