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Minister Joel Osteen talks to attendees at "A Night of Hope" with his wife, Vicoria on Saturday, Oct. 28, 2017, in Los Angeles.

Lakewood church pastor Joel Osteen delivers a sermon at the Houston mega church on Sunday, April 22, 2018. Images for a four-part series on its pastor, Joel Osteen. ( Elizabeth Conley / Houston Chronicle )

Lakewood Church pastor Joel Osteen takes to the stage for his sermon on Sunday, April 22, 2018, in Houston. Images for a four-part series on it's pastor, Joel Osteen. ( Elizabeth Conley / Houston Chronicle )

Houston police are investigating the uncovering of a undisclosed amount of checks and cash during a plumbing repair at Joel Osteen's Lakewood Church last month, according to a statement released by the church.

A plumber told KPRC 2 he found money on Nov. 10 in about 3,000 envelopes stashed behind tile and insulation during a toilet repair at the megachurch.

Lakewood said in the release Thursday that police were notified after the church was made aware of the discovery.

Related: How Joel Osteen made himself the smiling embodiment of a guilt-free Gospel

The revelation comes over seven years after thieves took $600,000 worth of checks and cash from a safe at the church in March 2014.

Police never made any arrest in the 2014 theft and it is unclear where the case left off.