Judges 7:2-8

Then the LORD said to Gideon, “You have too many men to defeat the Midianites. I don’t want the Israelites to brag that they saved themselves. So now, announce to the people, ‘Anyone who is afraid may leave Mount Gilead and go back home.’ ” So twenty-two thousand men returned home, but ten thousand remained. Then the LORD said to Gideon, “There are still too many men. Take the men down to the water, and I will test them for you there. If I say, ‘This man will go with you, he will go. But if I say, ‘That one will not go with you,’ he will not go.” So Gideon led the men down to the water. There the LORD said to him, “Separate them into those who drink water by lapping it up like a dog and those who bend down to drink.” There were three hundred men who used their hands to bring water to their mouths, lapping it as a dog does. All the rest got down on their knees to drink. Then the LORD said to Gideon, “Using the three hundred men who lapped the water, I will save you and hand Midian over to you. Let all the others go home.” So Gideon sent the rest of Israel to their homes. But he kept three hundred men and took the jars and the trumpets of those who left. Now the camp of Midian was in the valley below Gideon.