Catechism of the Catholic Church
Paragraph 2263
The legitimate defense of persons and societies is not an exception to the prohibition against the murder of the innocent that constitutes intentional killing. "The act of self-defense can have a double effect: the preservation of one's own life; and the killing of the aggressor.... The one is intended, the other is not." (1737)
No biblical citations detected in this paragraph.
No semantically close passages found in the indexed corpus.