Why did God command the destruction of the Amalekites?

The command for Israel to destroy the Amalekites, as recorded in 1 Samuel 15, stems from a historical context wherein Amalek attacked Israel unprovoked during their exodus from Egypt. God remembers this act of wickedness and establishes a perpetual war against Amalek as a divine judgment. The severity of this command illustrates God's holiness and justice, as He cannot tolerate sin and rebellion against His people. It underscores the seriousness with which God treats sin and serves as a stark reminder that disobedience brings about divine repercussions. For Christians, this narrative calls for a serious reflection on the nature of God's judgment and the necessity of complete obedience to His will as a response to His grace.