DEUT1045 Do not sell such a woman [i.e. a non-Jewish woman taken captive in war]. Key concept: To teach decency, as well as all other positive traits, so that we cultivate these traits and thereby make ourselves worthy of Heaven's blessings. Hashem, Who wants to bestow good upon us, desires that we be free of negative character traits, so that we will be worthy of His blessing. Without question, it is coarse and ugly to sell a woman into slavery after having had relations with her.