Judges 7:5-6

So 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.” Now 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.