 Suicide, Augustine determined, was an unrepentable sin. St. Thomas Aquinas later defended this prohibition on three grounds. (1) Suicide is contrary to natural self-love, whose aim is to preserve us. (2) Suicide injures the community of which an individual is a part. (3) Suicide violates our duty to God because God has given us life as a gift and in taking our lives we violate His right to determine the duration of our earthly existence (Aquinas 1271, part II, Q64, A5). This conclusion was codified in the medieval doctrine that suicide nullified human beings’ relationship to God, for our control over our body was limited to usus (possession, employment) where God retained dominium (dominion, authority). Law and popular practice in the Middle Ages sanctioned the desecration of the suicidal corpse, along with confiscation of the individual’s property and denial of Christian burial.