2 Timothy 2:4
No soldier on duty entangles himself in the affairs of life, that he may please him who enrolled him as a soldier.
Blessed be Yahweh, my rock, who teaches my hands to war, and my fingers to battle: my loving kindness, my fortress, my high tower, my deliverer, my shield, and he in whom I take refuge; who subdues my people under me.
When a man takes a new wife, he shall not go out in the army, neither shall he be assigned any business: he shall be free at home one year, and shall cheer his wife whom he has taken.
from twenty years old and upward, all who are able to go out to war in Israel. You and Aaron shall number them by their divisions.
About forty thousand men, ready and armed for war passed over before Yahweh to battle, to the plains of Jericho.
So all those who were numbered of the children of Israel by their fathers' houses, from twenty years old and upward, all who were able to go out to war in Israel;
Moses was angry with the officers of the army, the captains of thousands and the captains of hundreds, who came from the service of the war.
1 Chronicles 12:24
The children of Judah who bore shield and spear were six thousand and eight hundred, armed for war.
Put on the whole armor of God, that you may be able to stand against the wiles of the devil.
Greater love has no one than this, that someone lay down his life for his friends.
a time to love, and a time to hate; a time for war, and a time for peace.