1 Samuel 14:11-15

11So both of them showed themselves to the garrison of the Philistines. And the Philistines said, "Look, Hebrews are coming out of the holes where they have hidden themselves."

12And the men of the garrison hailed Jonathan and his armor-bearer and said, "Come up to us, and we will show you a thing." And Jonathan said to his armor-bearer, "Come up after me, for the Lord has given them into the hand of Israel."

13Then Jonathan climbed up on his hands and feet, and his armor-bearer after him. And they fell before Jonathan, and his armor-bearer killed them after him.

14And that first strike, which Jonathan and his armor-bearer made, killed about twenty men within as it were half a furrow's length in an acre of land.

15And there was a panic in the camp, in the field, and among all the people. The garrison and even the raiders trembled, the earth quaked, and it became a very great panic.