Prime Minister Tony Abbott has implored Indonesia to pull back from the brink and spare Andrew Chan and Myuran Sukumaran from execution.
As the Bali Nine ringleaders wait for authorities to set a date for their execution by firing squad, Mr Abbott made a passionate plea in parliament on Thursday.
He questioned how it would be in Indonesia's interest to kill two men who have been helping the country in the fight against drug crime.
"Pull back from this brink," Mr Abbott urged.
"Don't just realise what is in your own best interests, but realise what is in your own best values."
Earlier the prime minister revealed he had asked for a "final call" with Indonesian President Joko Widodo who has spurned Australia's previous calls for clemency.
Foreign Minister Julie Bishop also confirmed she raised the prospect of a prisoner swap deal with her Indonesian counterpart to try to halt the executions.
"We are seeking opportunities to explore every option that might be available to us, every avenue that might be available to save the lives of these two men," she said.
Ms Bishop said she could not comprehend the display of force by the Indonesian military when transferring Chan and Sukumaran from Kerobokan prison.
"They've never done anything that would suggest they are violent, or that they would risk anybody else's lives."
Ahead of the looming executions, Defence Minister Kevin Andrews said it was premature to say how the government might respond.
He would not say whether some joint training exercises with Indonesia or defence equipment sales would be suspended.
"Indonesia is a next door neighbour ... so that is obviously part of our ongoing consideration," he said.
Opposition Leader Bill Shorten said Australia was not seeking forgiveness or freedom for the convicted pair even though they had repented.
"The execution of these two young men will solve nothing," he told parliament.
Australian Federal Police Commissioner Andrew Colvin revealed his organisation had been using its considerable influence with its counterparts in Indonesia to push for clemency.
But he insisted the AFP would bear no responsibility if the men were executed.
The AFP has been widely criticised for providing Indonesian police with information that led to the arrests of the Bali Nine in 2005.
"Put simply, do we have blood on our hands? No," Mr Colvin said.
Dozens of MPs took part in a candlelight vigil, organised by the Australian Parliamentarians against the Death Penalty, outside Parliament House on Thursday morning.
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