What does the Bible say about joining the military?

Bible Topic · WEB

The Bible presents military service as a weighty calling that may serve the lawful protection of neighbors and public order, yet must never replace trust in the Lord or excuse injustice. Deuteronomy 20:1-4 portrays God as the defender of his people, while Psalms 20:6-7 and 108:12-13 warn against trusting human strength. Romans 13:1-5 teaches that civil authorities bear responsibility for restraining evil, giving Christians reason to respect lawful service. Joshua 1:9 and Isaiah 41:10 offer courage rooted in God's presence. At the same time, John 15:13 commends sacrificial love, calling every soldier to humility, moral restraint, and love of neighbor.