Peaceful protesters say they won't move from outside Immigration Minister Peter Dutton's Brisbane office until the government releases all children from detention.
Multi-denominational Christian group Love Makes a Way is calling on the government to adopt Senate amendments to free all children from Australian detention centres.
"Minister Dutton can decide today to release all 112 children, including babies, currently in Australian detention centres and the 95 held on Nauru," Anglican priest Fr Nicholas Whereat said.
"Imagine what a Christmas present that would be."
It was disappointing the government had refused to openly communicate about the issue, forcing groups to adopt such protest measures, Anglican Dean of Brisbane Peter Catt said.
The group - which includes Anglican, Baptist, Catholic and Quaker members - wants mandatory reporting for abuse and broader media access to detention centres.
Greater protection for whistleblowers reporting abuse is also a priority.
Protesters on Thursday gathered outside Mr Dutton's Strathpine office brandishing signs reading "Jesus was an asylum seeker" and attacking Australia's "callous" policies.
It comes after six members were forcibly removed after camping out at Prime Minister Malcolm Turnbull's Edgecliff office.
The group intends to remain at the Immigration Minister's office, or outside, until children are released from detention.
