Josh and Anna Duggar celebrate wedding anniversary

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Six months after Josh Duggar was released from rehab, the Duggar family has shared a rare official photo of him and his wife, Anna, to mark the couple's ninth wedding anniversary.

A happy photo of the pair, both 28, was posted on the family's Facebook page on Monday with the caption, "Happy Anniversary, Josh and Anna. We are so thankful for God's redemptive love in your lives."

EXCLUSIVE: Josh Duggar Exits Rehab After More Than 6 Months

Josh and Anna, who have four children together, have been going through marital struggles, with Josh entering rehab in August 2015 amid confessions of cheating on his wife and battling an addiction to Internet pornography.

Just months earlier, Josh, the eldest son of "19 Kids and Counting's" Jim Bob and Michelle Duggar, had admitted to molesting minors, including four of his sisters, when he was younger.

In January, Anna opened up about visiting her husband in rehab, describing the move as "an important step on a long, difficult road."

WATCH: Anna Duggar Blogs About Visiting Husband Josh Duggar in Rehab

Prior to the visit, a source close to the family told ET that Anna was hoping to mend her marriage despite Josh's indiscretions.

"Anna is planning on getting back together with Josh, that's just how it goes," shared the insider. "The family was taught to have a new level of forgiveness towards Josh."