This passage seems to discuss a typical situation where the Israelites might have been influenced by specific ideas about God, humans, and the world introduced by Greek thought. The message is that we should not only do good or evil because God sees or does not see us; instead, we are called to act reasonably and righteously because that is our human duty and the pursuit of good. Evil does not “harm” God; it harms me and my neighbor. When it comes to judgment, we should not expect it initially from God, but rather from our own conscience and the neighbor who has been affected—either benefited or harmed—by our actions.
