An Arkansas woman claimed she bludgeoned her grandma to death with a hammer because God told her to — and has been sentenced to 36 years behind bars for the heinous slaying, according to local reports.

Andrea Wilson, 28, pleaded guilty Monday to first-degree murder, tampering with physical evidence, aggravated assault and third-degree battery, in connection to the May 15, 2018 killing of her 81-year-old grandmother, Ruby Ross, in Bentonville, according to KNWA and the Arkansas Democrat-Gazette.

She was initially charged with capital murder but took a plea deal, according to the Democrat-Gazette. She will spend 36 years in the Arkansas Department of Corrections, followed by a 10-year suspended sentence.

Wilson visited Ross that day and the two ate together, according to the report. The octogenarian then went to bed, and Wilson struck her with a hammer about four times, the outlet reported, citing deputy prosecutor Joshua Robinson.

She claimed she committed the deadly act because God told her to make a sacrifice or she would be sent to hell, according to the prosecutor.

She said she believed that day was the last opportunity to make the sacrifice.

Wilson hid the hammer and other items in a garbage bag, which she placed in an outbuilding on the property, Robinson said.

Earlier that day, Wilson struck a bicyclist with her car as he crossed at a crosswalk, according to KNWA.

The victim recalled that Wilson tried to drive back toward him but struck a boulder instead and got stuck there, the station reported.

Then Wilson, who appeared normal, got out of her car and asked the victim, “Can you help me?”

As the case progressed, Wilson underwent several mental evaluations, the outlet reported. She claimed that she had not been taking her prescribed lithium when both incidents occurred.