True evil

Evil is an act in which a person or a people do to others what they would not wish done to themselves.
Absolute evil is the conscious justification of evil and its acceptance as permissible or necessary.
True evil is absolute evil justified as the fulfillment of God's will.

According to the biblical narrative (especially in the books of Exodus, Joshua, Numbers, and Deuteronomy), the descendants of Abraham — the Israelites — after the exodus from Egypt, entered Canaan (the territory of modern-day Israel and Palestine), where, according to the text, they captured cities and destroyed local peoples, including women and children, by the command of God.
The Torah (the Five Books of Moses — Genesis, Exodus, Leviticus, Numbers, Deuteronomy) contains numerous instructions attributed to God commanding the destruction of the native peoples of Canaan.
If we strictly follow the previously formulated definition — “True evil is absolute evil justified as the fulfillment of God's will” — then certain commandments in the Torah, where mass destruction is justified by divine command, correspond to the definition of true evil.