Cur Deus Homo

"Cur Deus Homo" ("Why God Became Man") is a theological work by Saint Anselm exploring why Jesus Christ, believed to be both divine and human, incarnated. Anselm argues that humanity's sin created a debt owed to God that no human could pay. Only someone divine, without sin, could make a perfect atonement. Jesus, as both fully divine and fully human, offers himself to satisfy this debt, reconciling humanity with God. The work emphasizes reason and faith, illustrating that Christ's incarnation and sacrifice are essential for salvation and demonstrate God's justice and mercy.