5 "Then the officers of the army must address the troops and say, 'Has anyone here just built a new house but not yet dedicated it? If so, you may go home! You might be killed in the battle, and someone else would dedicate your house. 6 Has anyone here just planted a vineyard but not yet eaten any of its fruit? If so, you may go home! You might die in battle, and someone else would eat the first fruit. 7 Has anyone here just become engaged to a woman but not yet married her? Well, you may go home and get married! You might die in the battle, and someone else would marry her.' 8 "Then the officers will also say, 'Is anyone here afraid or worried? If you are, you may go home before you frighten anyone else.'
Matthew Henry's Commentary on Deuteronomy 20:5-8
Commentary on Deuteronomy 20:1-9
(Read Deuteronomy 20:1-9)
In the wars wherein Israel engaged according to the will of God, they might expect the Divine assistance. The Lord was to be their only confidence. In these respects they were types of the Christian's warfare. Those unwilling to fight, must be sent away. The unwillingness might arise from a man's outward condition. God would not be served by men forced against their will. Thy people shall be willing, Isaiah 8:12.