"Yesterday Josh checked himself into a long-term treatment center," the family said in a posting on duggarfamily.com
. "For him it will be a long journey toward wholeness and recovery. We pray that in this he comes to complete repentance and sincere change.
"In the meantime, we will be offering our love, care and devoted support to Anna and our grandchildren as she also receives counsel and help for her own heart and future," the statement continued.
It's unclear what type of rehab the former reality TV star has entered.
Last week, Josh Duggar apologized
after his name turned up in the data of the cheating website Ashley Madison.
"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," Duggar said August 20.
"I brought hurt and a reproach to my family, close friends and the fans of our show with my actions that happened when I was 14-15 years old, and now I have re-broken their trust," Duggar said.
The Ashley Madison hack, which included information on 32 million users, was released to the public last week
It's been an embattled year for Duggar, 27, who is married to Anna Duggar and is the father to four children.
He also apologized
back in May after reports emerged alleging he molested girls as a teenager, including his sisters. He said then that he "acted inexcusably."
His family's TLC show, "19 Kids and Counting," was canceled in May.
The Duggar family is known for its adherence to strict religious beliefs, including no sex outside of marriage. For two years, Josh Duggar was head of the Family Research Council's FRC Action arm, a division of the conservative interest group. He resigned in May after the reports about his sisters emerged.
In the statement, the family said "we continue to look to God"
"He is our rock and comfort," the statement said. "We ask for your continued prayers for our entire family."