An angel appeared, and Gideon begged him for a sign, that he would achieve the deliverance of Israel. He excused his petition with the precedent of Moses, the first prophet, who likewise has asked for a sign. The angel bade him pour water on the rock, and then gave him the choice of how he would have the water transformed. Gideon desired to see one-half changed into blood, and one-half into fire.
Thus it happened. The blood and the fire mingled with each other, yet the blood did not quench the fire, nor did the fire dry out the blood. Encouraged by this and other signs, Gideon undertook to carry on the war against the Midianites with a band of three hundred God-fearing men, and he was successful. Of the enemy one hundred and twenty thousand corpses covered the field, and all the rest fled precipitately.