1 Chronicles 5:22
22 For there fell down many slain, because the war was of God. And they dwelt in their steads until the captivity.
How could the God of peace conduct war?
PROBLEM: In 1 Chronicles 5:18-22, the war of the sons of Reuben, the Gadites and the half tribe of Manasseh, against the Hagrites is described. Verse 20 states that the children of Israel cried out to the Lord in the midst of the battle, and God helped them in their fight against the Hagrites. In fact, verse 22 states, “for many fell dead, because the war was God’s.” However, if God is good (Psalms 100:5) and if God is the God of peace (Romans 15:33), how can He make war?
SOLUTION: Waging war and being a God of goodness and peace are not necessarily incompatible. First, it is wrong to suppose that waging war is inconsistent with goodness. A surgeon takes drastic action against a cancer to bring about the ultimate good of the patient. Yet, spiritual evil is much more serious than physical evil. When God waged war in the OT, it was against the forces of spiritual evil. God took drastic action to rid the land of the evil influence of the inhabitants.