Genesis 34:28

When Simeon and Levi used circumcision (the sign of God’s covenant) to deceive and kill the Canaanite men, they showed disrespect for that sacred sign. Their killing of all the males and their looting of the city was not justice. It was harsh and excessive revenge.

They were angry and wanted to correct a wrong. But they should have asked for payment for the harm done (see Exodus 22:16–17; Deuteronomy 22:28–29). Instead, their violent anger led to the loss of their birthright blessing (the special family blessing given to the firstborn; Genesis 49:5–7).

After Jacob and his family settled in the land, the Canaanites became a threat. This story warns the Israelites about the risk of being influenced by the Canaanites. Later, God commanded Israel not to marry or make deals with them because they were corrupt and would corrupt others. This chapter gives an implicit warning against adopting their lifestyle (34:1–2).

It also teaches Israel to maintain integrity and not misuse holy things for deceit or violence (34:13). Israel's reputation was at risk in the land (34:30). Because of their violent actions, Simeon and Levi did not receive the birthright blessing (49:5–7).