A plumber at Pastor Joel Osteen’s church has found hundreds of envelopes full of cash when he went into the toilet to work.

A plumber called into a Houston radio station KILT-FM on Thursday, according to the city’s KPRC-TV. The caller said, “There was a loose toilet in the wall, and we removed the tile. Went to go remove the toilet and I moved some insulation away and about 500 envelopes fell out of the wall.”

“I was like ‘Oh wow.’ I got my flashlight, shined up in there,” the caller added.

The envelopes were filled with cash and checks, according to the caller, who said he reported the find to the maintenance supervisor.

“I went ahead and contacted the maintenance supervisor that was there, and I turned it all in,” the caller said.

Lakewood Church also said in a statement that cash and checks were discovered recently during work being done on the church, but did not add how much money was found and did not directly confirm what the plumber said.

“Lakewood immediately notified the Houston Police Department and is assisting them with their investigation. Lakewood has no further comment at this time,” the church said.