"I think somebody created that narrative that somehow we were high and dry," he said. "None of that is true. This building was a safety issue and we took people in from the very beginning."
The Houston mega-church was sharply criticized earlier in the week after claiming the building was inaccessible, but Osteen maintains that it was opened as soon as possible.
He said that the water had come within a foot of going over the church's flood gates but that they welcomed victims as soon as it receded.
"When somebody's not in this situation, where, we have nobody in this facility. We were fearing that it would flood. The last thing we would do was put people in it right at the beginning," he said.
Asked what he had learned from the criticism, Osteen added, "We would probably do some things differently, obviously."
Osteen said that the staff and people close to the church were also affected by the flood.
"My niece was stranded right across the street from this building," he said. "It was a big flood and it affected all of the people that run this facility as well."
Osteen said that the church, which housed 3,000 people in 2001 during Hurricane Allison, has coordinated with the city and is now functioning as a shelter.
When it comes to future plans for recovery, Osteen said the church is in it for the long haul and would be helping the city rebuild for years to come.