Judges 7:2-7

2And the LORD said to Gideon, The people that are with thee are too many for me to give the Midianites into their hands, lest Israel vaunt themselves against me, saying, My own hand hath saved me.

3Now therefore, proclaim in the ears of the people, saying, Whoever is fearful and afraid, let him return and depart early from mount Gilead. And there returned of the people twenty and two thousand; and there remained ten thousand.

4And the LORD said to Gideon, The people are yet too many; bring them down to the water, and I will try them for thee there: and it shall be, that of whom I say to thee, This shall go with thee, the same shall go with thee; and of whomever I say to thee, This shall not go with thee, the same shall not go.

5So he brought down the people to the water: and the LORD said to Gideon, Every one that lappeth of the water with his tongue, as a dog lappeth, him shalt thou set by himself; likewise every one that boweth down upon his knees to drink.

6And the number of them that lapped, putting their hand to their mouth, were three hundred men: but all the rest of the people bowed down upon their knees to drink water.

7And the LORD said to Gideon, By the three hundred men that lapped will I save you, and deliver the Midianites into thy hand: and let all the other people go every man to his place.