Why is the war between good and evil significant for Christians?

The struggle between good and evil is significant for Christians because it reflects the eternal battle for souls and the ultimate sovereignty of God over all creation. Scripture reveals that a day of reckoning will occur when God will judge the world in righteousness (Isaiah 66:15). This not only provides comfort to believers, assuring them of God's justice, but also serves as a warning to the unrepentant of the dire consequences of rebellion against Him. Ultimately, the victory of Christ over evil through His death and resurrection offers hope of redemption and assurance of God's continual presence with His people.