I Samuel 14:8-14

Then Jonathan said, “Very well, let us cross over to these men, and we will show ourselves to them. If they say thus to us, ‘Wait until we come to you,’ then we will stand still in our place and not go up to them. But if they say thus, ‘Come up to us,’ then we will go up. For the LORD has delivered them into our hand, and this will be a sign to us.” So both of them showed themselves to the garrison of the Philistines. And the Philistines said, “Look, the Hebrews are coming out of the holes where they have hidden.” Then the men of the garrison called to Jonathan and his armorbearer, and said, “Come up to us, and we will show you something.” Jonathan said to his armorbearer, “Come up after me, for the LORD has delivered them into the hand of Israel.” And Jonathan climbed up on his hands and knees with his armorbearer after him; and they fell before Jonathan. And as he came after him, his armorbearer killed them. That first slaughter which Jonathan and his armorbearer made was about twenty men within about half an acre of land.