"If we say that we have no sin, we deceive ourselves and the truth is not in us," the verse reads

By Michele Corriston
Updated August 24, 2015 10:40 AM
Credit: D Dipasupil/Getty(2)

Anna Duggar’s siblings beg her to leave husband Josh after his shocking double life is revealed. Subscribe now for more on the cheating scandal and the Duggars’ ultra-conservative lifestyle, only in PEOPLE!

Jessa (Duggar) Seewald is preaching forgiveness after her brother Josh Duggar was implicated in the Ashley Madison leak.

On Sunday, the mom-to-be shared a Bible passage called “Walk in the Light” on Instagram.

“If we say that we have no sin, we deceive ourselves and the truth is not in us,” the verse reads. “If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.”

The family’s pastor, Ronnie Floyd, also obliquely referenced the sex scandal in his sermon Sunday at Cross Church in Springdale, Arkansas.

“Adultery, being sexually or emotionally unfaithful to your spouse, that’s wrong. Some of you are on the other end of someone else’s destruction,” he told the worshipers.

Duggar, 27, confessed to cheating on wife Anna last week after Ashley Madison, a site for arranging extramarital dalliances, was hacked.

“I have been the biggest hypocrite ever. While espousing faith and family values, I have secretly over the last several years been viewing pornography on the internet and this became a secret addiction and I became unfaithful to my wife,” he said in a statement released on the Duggars’ blog that was later edited to omit the reference to porn.

Seewald, 22, has already forgiven her brother for molesting her and four other underage girls as a teenager.

“It wasn’t like a horror story,” she told Fox News’ Megyn Kelly in June, adding that her parents “sent Josh away.”

“He was repentant whenever he left,” she explained. “When he came back, I could see he had made life changes.”

TLC canceled the conservative clan’s reality show show 19 Kids and Counting after the controversy went public this spring.