RNA - Mosques, synagogues and churches will welcome worshippers on Monday night, in what their leaders say is a show of community solidarity.
"In times of great adversity it is imperative that we remain calm, united and stand together," Lebanese Muslim Association president Samier Dandan said.
Jarrod McKenna, a Westcity Church Teaching Pastor, called on those of faith to pray "for the safety of the hostages, and that our nation will not become hostage to fear and hatred".
Vigils will be held at Lakemba Mosque and Auburn Gallipoli Mosque in Sydney, Omar Bin Alkhattab Mosque in Adelaide, Holland Park Mosque in Brisbane, the Caulfield Hebrew Congregation Synagogue in Melbourne and the Theo Notaras Multicultural Centre in Canberra.
St George's Anglican Church in Paddington and St Mark's Darling Point in Sydney are already open for prayer.
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