Alister Ross was in Gallipoli when he was saved by the Bible.
The butter factory worker was a corporal in the Australian infantry when a bullet and a piece of shrapnel hit him in his left breast.
The 22-year-old survived thanks to a pocket Bible his mother had given him, the dense pages stopping the metal from piercing his heart.
His family in London on Saturday donated the Bible, complete with bullet holes, to be displayed in the Anzac Memorial in Sydney.
"It is a very sacred piece of history," Prime Minister Malcolm Turnbull said when accepting the gift in London.
"A reminder of the extraordinary heroism and sacrifice of Alister's generation."
The Bible contains notes from Corporal Ross' memories of battles, and pressed poppy petals.
"In Gallipoli he was saved by the Bible," Mr Turnbull said.
"It trapped a piece of shrapnel that otherwise would have killed him."
Corporal Ross later died on the Western Front and his body was buried in an unmarked grave in France, and has not been recovered.
At a wreath-laying ceremony at the Australian war memorial in London in the lead-up to Anzac Day, Mr Turnbull pledged support for the members of the armed forces.
"We best honour the Anzacs of 1918, by supporting you, the service men and women of today," he said.
