Vincent Cassidy was convicted of historic indecent assaults on boys in the 1970s following a trial at the High Court in Paisley this week.
Between July 1973 and December 1974, Cassidy preyed on a 16-year-old while serving at St Laurence’s Church in Greenock.
He committed further offences against a second boy at St Fergus’ Church in Paisley and elsewhere between 1974 and 1977.
Judge Sheena Fraser said the crimes would today be ‘classified as rape’.
Following his conviction earlier this week, a spokesperson for the Diocese of Paisley said the matter was reported to Police Scotland when the allegations came to light in 2018.
The Diocese also confirmed Cassidy left the priesthood in the late 1970s and moved to Australia.
In a further statement, Bishop John Keenan said: "I want first to acknowledge the courage of those who came forward to report abuse and to participate in what has often been a long and painful process.
“Abuse causes profound and lasting harm, and I am deeply sorry for the suffering experienced by those affected and for the distress this news will bring to many within our parishes and the wider community.
“We recognise that this news may raise difficult emotions — shock, anger, sadness, confusion, or loss of trust.
“Support is available for anyone affected, whether directly or indirectly.
“Confidential pastoral and safeguarding support can be accessed through the Diocesan Safeguarding Team, and independent support services are also available.
“Safeguarding remains a fundamental priority for our Diocese. We are committed to ensuring that our churches are safe places for all, especially children and vulnerable adults.”
Bishop Keenan stressed that safeguarding policies and practices had been ‘significantly strengthened’ since Cassidy’s crimes were committed.
He said: “We must continue to listen, learn, and remain vigilant.
“If anyone has concerns or information relating to abuse, whether in the past or current, I strongly encourage you to come forward.
"Reports can be made directly to the Diocesan Safeguarding Adviser or to the police.
“I ask you to hold in your prayers those who have been harmed, their families, and all who are affected by this situation.
“I also ask you to pray for our diocesan family as it seeks healing and renewal in the months ahead.”