That seems to be an obvious question, but let’s find out how it really happened.
Asa was fortifying the cities of Judah and building them up.
Suddenly, an Ethiopian enemy king wanted to start a war. His army was twice the size of Asa’s army.
“Zerah the Ethiopian came out against them with his army of a million men and 300 chariots, and came as far as Mareshah. and Asa went out to meet him, and they drew up their lines of battle in the Valley of Zephathah at Mareshah. And Asa cried to the Lord his God,