"It was so unreal, I still have trouble comprehending it today," Jinger Duggar, 22, said as she teared up in Tuesday's Jill & Jessa: Counting On. "But just the reality of this, this person we thought we knew, the person that we loved greatly – we still love – just the hard pain that has caused."
A scandal from Josh's past was made public last June, and a few months later the oldest Duggar sibling, 28, admitted to a pornography addiction and having been unfaithful to wife Anna. Shortly after, he checked in to a faith-based rehabilitation center, which he left in March.
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Jinger wasn't the only family member to address the Duggar drama: Jessa (Duggar) Seewald, 23, acknowledged on Tuesday's episode that "it was just really difficult" to revisit issues from their past while pregnant with son Spurgeon.
"It was very difficult, and we cried a lot of tears," she said. "I felt like it was especially difficult for me because I had spoken out in defense of Josh and had stood up for him and then there was a whole another wave of things that came through."
She continued, "It was really difficult for me to just be like, 'I stood up here, I spoke out for him,' and yet there were some things he was hiding and wasn't being honest about. It was very emotional through those months after that, just working through all that."
Jessa said she used the experience to strengthen her own relationship with husband Ben Seewald, noting that it "strengthened our resolve to be true to our wedding vows."
Jill & Jessa: Counting On airs Tuesdays (9 p.m. ET) on TLC.