The Bible in the first book of Chronicles records that the Israelites (sons of Reuben, Gad and the half tribe of Manasseh), went to war against the Hagarites and were successful in winning the war. These men were not only valiant but they were skillful in war (buckler, sword and bow) as well (1 Chronicles 5:19), but it was not their valiance or their skill that made them win the war. It was because the Lord intreated for the Israelites and fought their fight. But why did the Lord fight for the Israelites? The Lord fought for the Israelites, because they cried out to him and put their trust in Him (1 Chronicles 5:20). In other words, they cried to God for help and trusted that He will show up to fight for them. They committed their war cry to the Lord.

We are to do likewise as well, when it comes to fighting our Spiritual wars. Not only must we cry out to the Lord, but we must commit ourselves and our strategy, plans, ways, … to the Lord and trust in Him completely. This also affirms that our valiance and skill is not what is needed to win a war. When God fights our battles, one thing is certain, we will always win. Cry and commit to Him all things.

1 Chronicles 5:18-20 (KJV)
18 The sons of Reuben, and the Gadites, and half the tribe of Manasseh, of valiant men, men able to bear buckler and sword, and to shoot with bow, and skilful in war, were four and forty thousand seven hundred and threescore, that went out to the war.
19 And they made war with the Hagarites, with Jetur, and Nephish, and Nodab.
20 And they were helped against them, and the Hagarites were delivered into their hand, and all that were with them: for they cried to God in the battle, and he was intreated of them; because they put their trust in him.