There is a clear continuity between the of Lazarus and the rich man (Luke 16.19-31) and the warning of Jesus the Messiah in Luke 17.1-2. These two passages belong to a coherent sequence in which Luke develops a theology of moral responsibility, divine justice and compassion toward the most vulnerable.
In the of Luke 16.19-31, the rich man ignores Lazarus, a poor, sick man at his gate. After death the roles are reversed: Lazarus is comforted beside Abraham, while the rich man is tormented. This account illustrates the seriousness of spiritual and social indifference. The rich man is not condemned for his wealth, but for his moral blindness, his inability to see and help the one who suffers.
Luke 17.1-2 extends this logic. Jesus the Messiah warns his disciples that offenses, occasions of stumbling, are inevitable in this world, but that the one who causes them incurs a terrible judgment. The image of a millstone tied around the neck and of a man thrown into the sea is a striking hyperbole: it stresses that causing a “little one” to stumble, a believer who is humble, vulnerable or young in the faith, is a fault so grave that it exceeds even physical death.
The figure of the “little one” in Luke 17.2 can be set in parallel with that of Lazarus in Luke 16.20-21. Both represent those whom the world despises or ignores, but whom God lifts up and protects. The offense mentioned in Luke 17.1-2 is a form of indifference or malice that turns these “little ones” away from the faith or exposes them to a fall. The rich man, in Luke 16.19-31, embodies this offense through his inaction and silent contempt.
Luke, as a good theological narrator, does not place these accounts side by side at random. He builds a progression: first the denunciation of moral blindness (Luke 16.19-31), then the call to ethical vigilance in community relationships (Luke 17.1-2). It is one and the same thread: the justice of the Kingdom of God is revealed in the attention given to the weakest, and divine judgment falls on those who cause their downfall.