The church’s 1.34 acres of land is divided almost down the middle by that main driveway, which leads to a rear parking lot.
The woods that begin on the western side extend beyond the property line, onto a neighbor's land.
Local authorities tell KGW people have been illegally camping in those woods for at least a decade.
"The issues that happen there sometimes ebb and flow, sometimes seasonally," said Benton County Undersheriff Greg Ridler on Friday. "People often find a good location for them to set up homeless camps, and then other people come in. We become aware of it. We respond. It's cyclic."
Locally referred to as "the Christmas tree farm," the neighboring property is actually just vacant land, owned by Corvallis businessman David Lin.
Ridler said a few years ago, Lin asked authorities to help him clear homeless camps from the woods on his property, which resulted in deputies citing campers for trespassing.
Lin declined to comment for this story, except to say via phone that he "respects [the church's] wish."
Butler said she learned of the routine this past summer, when one citation hit closer to home.
"One Sunday morning we were getting ready for worship," she said. "A gentleman walked into the church and asked if I knew that someone had been arrested for trespassing on our front porch the night before."
Authorities have not confirmed that specific citation.
Butler couldn't let it go.
"It made me curious, you know? Why? Why would someone be arrested for trespassing? The owner of a property usually has to complain, and we certainly hadn't done that," she said. "And we began by just asking law enforcement not to [cite] people."
Word spread fast, and people desperate for a permanent place to sleep came running to secure a spot.
"Within 24 hours of having taped off our property line for law enforcement, we had 23 people seeking safe sleeping space on our property," Butler said.
Butler and her congregates were overwhelmed.
She said they'd already set up a port-a-potty on the property, assuming people camping next door would use it. "But the reality of 23 people showing up asking for shelter? No, we did not anticipate it."
But, she recalled, a consensus quickly emerged.
"From the moment those folks showed up, the congregation just said, 'Well, absolutely,'" she said. "When Jesus shows up on your front door, you take care of Jesus."
The camp was there to stay, with the population capped at nearly two dozen.
That is, assuming they could make it legal and get neighbors on board.