Start reading in 2 Chronicles 20:24 and you will find the results of a battle the Nation won without fighting. They won by trusting. Led by their King, Jehoshaphat, the nation went to the battle as instructed by God. But there was no fight, at least for them. All they had to do was pick up the spoils of war.
God had promised that He would fight this battle and He did. The enemy was totally defeated, at least the earthly, physical enemy. Jehoshaphat is highly praised for his response and leadership of the people following this victory of God. Yet, the record indicates there was something lacking on the part of the people and their king.
The high places were not removed. This good king did not make the people remove them. This people who were protected and blessed by God did not respond to his goodness. The king would make a grave error by making an alliance with the king of Israel (the northern kingdom). The scriptures call it a “wicked” act.
Why can man not see the blessings of God and follow Him for a lifetime? God will fight the battles if we will let Him and He will bless us. He will not force us to be faithful but does provide the strength if we will just reach out and grab hold of it. Read and take to heart Revelation 2:10