One of the “Black Hebrew Israelite” killers who targeted a Jewish grocery store in Jersey City left behind a handwritten note that said, “I do this because my creator makes me do this and I hate who he hates,” law enforcement sources told The Post.

The message was found inside the stolen U-Haul van that David Anderson, 47, and his girlfriend, Francine Graham, 50, on Tuesday drove to the Jersey City Kosher Supermarket, where they gunned down three people.

Sources have identified the pair as adherents of the Black Hebrew Israelites, a fringe religious movement not associated with mainstream Judaism that’s been labeled a hate group by experts who track extremists in the US.

Anderson had posted anti-Jewish and anti-police messages to social media before the attack, the sources said.

The duo’s van was linked to the killing of an Uber driver in Bayonne, officials have said.

When Jersey City Detective Joseph Seals tried to question the pair about the vehicle earlier Tuesday, they fatally shot him in the head, sources have said.

They then drove to the nearby grocery store, where they were captured on CCTV footage rolling up in their van and firing two long rifles, said Jersey City Mayor Steven Fulop.

The mayor also called the attack “a hate crime against Jewish people.”