Indigenous senator Lidia Thorpe has accused Labor of being complicit in genocide in Gaza; joining 1,600 organisations urging the federal government to take action.
Senator Thorpe backed the "Gaza Plea for a Common Humanity" on Thursday, calling on the government to back a permanent ceasefire.
The plea also urged the government to recognise an independent state of Palestinian, end military support for Israel, and insist on the return of all hostages.
The joint statement also called on the government to do everything it can to implement rulings of the international court of justice.
"Silence and inaction over death and devastation in Gaza represents abandonment of the principles of a common humanity, and indifference to shared responsibility for the interdependence of all peoples and all living things on planet earth," the joint plea states.
"We plead with the Australian government and with all Federal politicians to cease favouring the benefits of siding with Israel against the supposed political costs of daring to take seriously the human rights of all Palestinians. Our leaders should instead start thinking about principles of a common humanity."
In December, Minister Thorpe was one of more than 50 current and former elected representatives calling for similar action and for the government to "examine" its relationship with Israel.
On Thursday, the Gunnai, Gunditjmara and Djab Wurrung woman accused PM Anthony Albanese and Foreign Affairs Minister Penny Wong of protecting their own political interests.
"The fact that Palestinian people have to make a plea for their humanity to be recognised is a shame on this government," Senator Thorpe said.
"Millions of people in this country are feeling hurt and let down by the government for their hollow words and lack of real action to prevent genocide.
"The requests of this plea simply ask the Labor Government to stop abusing their immense power through their complicity in genocide."
Senator Thorpe said the Plea "urges Prime Minister Albanese and Minister Wong to recognise our common humanity with the people of Palestine and place the rights of Palestinians above their own political interests".
Plea architect and Sydney Peace Foundation founder Professor Stuart Rees said failure to be outraged at the conflict represents a loss of humanity and that "the plea is about Australians speaking truth to power".
"We implore Australia's leadership to consider principles of a common humanity, which include reference to Israeli lives, and to the moral imperative to prevent genocide," he said.