Let No Man Put Asunder - Red Dead Redemption

"Let No Man Put Asunder" is one of the many side missions begun by speaking to a stranger in Red Dead Redemption. In this mission, John Marston encounters a distraught woman sitting by herself near Coot's Chapel, just southeast of Armadillo in New Austin. This curious woman is named Alma Horlick. Dressed in white, she claims that today is her wedding day and her fiancé Peter is running late. She requests that John go and retrieve Peter from the saloon in Armadillo. John goes to the saloon and asks a musician for information on Peter's whereabouts. The musician says he'll answer John's question if he helps convince his wife not to leave him or pays him five dollars. John speaks to the musician's wife and, after being berated, decides to simply pay the man five dollars instead of forcing her to stay with him. With the money in his pocket, the musician informs Marston that Pete Turner was a saloon regular, but that he's been dead for years. He urges John to go see Pete's grave for himself, out in Odd Fellow's Rest, just west of town. John does so and, sure enough, Pete Turner is deceased, his grave marker insinuating that he was murdered by Alma for dancing with another woman.
The title of this Stranger mission is taken from Matthew 19:6, "Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder." This line refers to the sanctity of marriage as a perpetual bond between two people.