Judges 7:4-8

4Then the Lord said to Gideon, “There are still too many people; bring them down to the water and I will test them for you there. Therefore it shall be that he of whom I say to you, ‘This one shall go with you,’ he shall go with you; but everyone of whom I say to you, ‘This one shall not go with you,’ he shall not go.”

5So he brought the people down to the water, and the Lord said to Gideon, “You shall separate everyone who laps the water with his tongue as a dog laps, as well as everyone who kneels down to drink.”

6Now the number of those who lapped [the water], putting their hand to their mouth, was three hundred men, but all the rest of the people kneeled down to drink water.

7And the Lord told Gideon, “With the three hundred men who lapped I will rescue you, and will hand over the Midianites to you. Let all the other people go, each man to his home.”

8So the three hundred men took people’s provisions [for the journey] and their trumpets [made of rams’ horns] in their hands. And Gideon sent [away] all the other men of Israel, each to his tent, but kept the three hundred men. And the camp of Midian was below him in the valley.