In a radio interview, he thanked Catholics for helping the church survive his conviction and acquittal on charges he ignored sexual abuse by a local priest.
"I'm contented and happy to be embarking on something new and joyful at this return to calm after the tempest," Cardinal Barbarin told the Lyon-based Radio Chretienne Francophone.
"As an archbishop, I had an incredible amount of administration, official business and financial affairs to deal with, as well as national and international meetings. But my true vocation is as a priest, and I'm now able to rebuild the foundations of my priestly life."
On July 1, the cardinal was to take up residence with the Little Sisters of the Poor at Saint-Pern, in northwestern France, after celebrating a farewell Mass in Lyon's St. John Baptist Cathedral.
In late May, he returned from the Holy Land, and he said Pope Francis had asked him to conduct future peace missions to the Middle East.
In March 2019, Cardinal Barbarin received a suspended jail sentence for failing to report abuse accusations against Bernard Preynat, a former French priest who was jailed for five years March 15 for assaulting at least 75 boys between 1971 and 1991.
Although Cardinal Barbarin's suspended sentence was overturned Jan. 30 by the eastern city's appeal court, the pope accepted the cardinal's resignation as archbishop March 6.