The Catch the Fire Ministries has tried to blame the bushfires disaster on laws decriminalising abortion in Victoria.
The evangelical church's leader, Pastor Danny Nalliah, claimed he had a dream about raging fires on October 21 last year and that he woke with "a flash from the Spirit of God: that His conditional protection has been removed from the nation of Australia, in particular Victoria, for approving the slaughter of innocent children in the womb".
Pastor Nalliah said he was helping to co-ordinate fire relief, including providing trucks to distribute clothes and food and giving his own blood, but he said he must tell "the truth".
Asked by the Herald if he did not believe most Australians would regard his remarks as being in appallingly bad taste, he said today: "I must tell people what they need to hear, not what they want to hear."
He said it was no use "molly-coddling" Australians.
Asked if he believed in a God who would take vengeance by killing so many people indiscriminately - even those who opposed abortion, Mr Nalliah referred to 2 Chronicles 7:14 to vouch for his assertion that God could withdraw his protection from a nation.
"The Bible is very clear," he said. "If you walk out of God's protection and turn your back on Him, you are an open target for the devil to destroy."
In the New King James version of the Bible, 2 Chronicles 7:14 states that: "If My people who are called by My name will humble themselves, and pray and seek My face, and turn from their wicked ways, then I will hear from heaven, and will forgive their sin and heal their land."
Mr Nalliah said: "In my dream I saw fire everywhere with flames burning very high and uncontrollably. With this I woke up from my dream with the interpretation as the following words came to me in a flash from the Spirit of God: that His conditional protection has been removed from the nation of Australia, in particular Victoria, for approving the slaughter of innocent children in the womb."
The former Treasurer, Peter Costello, sent a video message to an Australia Day prayer meeting organised by Pastor Nalliah.
He quoted a headline describing the fires as "The Darkest hour for Victoria". "A few months ago the news media should have reported 'the darkest hour for the unborn', but unfortunately the 'Decriminalisation of Abortion bill' went through parliament and was passed, thus making many people call Victoria 'the baby killing state of Australia,' " Mr Nalliah said.
Pastor Nalliah said there may be criticism. But he said he did not send out his media statement thoughtlessly. "We spend two days working on it."
He had previously said drought and the world financial crisis could be partly blamed on human sin.