Charles Ellicott Commentary 1 Samuel 30:25

"And it was so from that day forward, that he made it a statute and an ordinance for Israel unto this day." — 1 Samuel 30:25 (ASV)

A statute and an ordinance for Israel. —The decree that those who, for good reasons, stay with the supplies will share equally with those who go down to the battle, which became an established ordinance in Israel, is not without its meaning. In the Heavenly Church of God:

“His state
Is kingly; thousands at his bidding speed,
And post over land and ocean without rest:
They also serve who only stand and wait.”
MILTON: Sonnet 19

Moses praying on the hill contributed to the victory over Amalek even more than Joshua fighting in the plain (Exodus 17:11). “All Christians are not of equal strength. Some follow Christ to the conflict; others stay with the supplies. Some fight the Lord’s battles in the din of active life; others—aged men and women, the Simeons and Annas of the Church... weak in body but strong in faith—fight with the peaceful arms of prayers and tears; Christ is omnipotent and merciful; He rewards those who patiently stay with the supplies, as well as those who go forth in the march to fight valiantly in the battle.” —Bishop Hall, in Wordsworth.