ANSWER: Such an act needs no justification by the Bible, because the instinct of self-preservation is divinely implanted for the very purpose of instantaneous resistance to violence which may cause the death of the assailant. The religion of Jesus Christ does not condemn the healthful action of any one of our primary instincts. He is discussing the lex talionis, the practice of personal retaliation, when he says, "resist not evil," in Matt. 5:39. In the case of the midnight burglar, killed in the act of breaking in, no guilt was incurred. Ex. 22:2, 3.
— Steele's Answers pp. 63, 64.