Judges 7:5-6

So he brought the people down to the water; and the LORD said to Gideon, “Every one that laps the water with his tongue, as a dog laps, you shall set by himself; likewise every one that kneels down to drink.” And the number of those that lapped, putting their hands to their mouths, was three hundred men; but all the rest of the people knelt down to drink water.