Three years ago, Mr Taufa set up the firepurifications.webs.com website where he wrote that "we must be baptised in fire".
The 66-year-old said the fire and the loss of 11 of his family members was not a terrible coincidence.
"It is only a terrible coincidence if you don't know what the difference is ... explain to the people how to find, how to differentiate."
Jeremy Lale and his family had been staying with Mr Taufa for two months and were to move out of the home the day after the blaze - but he lost his wife and five children the night of the fire.
But Mr Taufa said the Lale family "came here at the right time".
"They [were] included in the people that God chose to become his people in heaven," he said.
Mr Taufa said he would build another home on the property and hoped more people would be attracted to his church.
"I know it's going to be a tourist resort in the future because people in the world heard about it. They will try to come and have a look."
Australian police told Close Up they were waiting for results on the cause of the fire but believed it was "just a tragic event".