Prime Minister Anthony Albanese has promoted a government-led campaign aimed at uniting the community in response to the terrorist attack at Bondi Beach.
The "One Mitzvah for Bondi" initiative encourages people of all faiths and communities to complete acts of kindness.
Albanese said the campaign urges every Australian to "bring light into the world through an act of kindness".
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"From checking in on a neighbour to volunteering your time in service of others, every mitzvah brings light into the world," he said.
"And by standing together, we show that hatred and violence will never define who we are."
Australians can describe their deed in up to 10,000 characters and log it on a form on the NSW government website.
"Please describe your good deed in honour of the Bondi victims," the form reads.
In the Jewish tradition, Mitzvah refers to an act of kindness or moral responsibility.
It can be something small, but when carried out collectively, it can have a large impact.
Albanese has been unable to shake off criticisms over his response to antisemitism and the attack.
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He has ruled out a federal royal commission, saying it would take years and delay action, despite strong calls from the opposition and Jewish community to open one.
Instead, he is likely to recall parliament early to introduce a landmark gun buyback scheme, hate speech laws, a new landmark offence that outlaws the radicalisation of children, and more powers for the home affairs minister to cancel or refuse visas if a person is suspected of promoting hate and violence or is associated with a terrorist organisation.
Less than a dozen of the 41 people injured remain in hospitals across Sydney after one of the worst terrorist attacks in Australia on December 14.
The alleged father and son gunmen opened fire on the Jewish community, who were celebrating the first day of Hanukkah, and killed 15 people.
Sajid Akram, 50, was killed in a shootout with police.
His son, Naveed Akram, 24, has been charged with 59 offences and remains in custody.
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