1 Samuel 14:13-17

Then Jonathan climbed up on his hands and feet, with his armor bearer behind him; and the men fell before Jonathan, and his armor bearer put some to death after him.

Now that first slaughter which Jonathan and his armor bearer inflicted was about twenty men within about half a furrow in an acre of land.

And there was a trembling in the camp, in the field, and among all the people. Even the garrison and the raiders trembled, and the earth quaked so that it became a great trembling.

Now Saul’s watchmen in Gibeah of Benjamin looked, and behold, the multitude dissolved; they went here and there.

So Saul said to the people who were with him, “Look carefully now and see who has left us.” And when they had looked, behold, Jonathan and his armor bearer were not there.