1 Samuel 14:12-14

Amplified Bible

¹² So the men of the garrison responded to Jonathan and his armor bearer, “Come up to us and we will tell you something.” Jonathan said to his armor bearer, “Climb up after me, for the Lord has given them into the hands of Israel.” ¹³ Then Jonathan climbed up on his hands and feet, his armor bearer following after him. The enemy fell before Jonathan [in combat], and his armor bearer killed some of them after him. ¹⁴ That first slaughter which Jonathan and his armor bearer made was about twenty men within about half a [plow] furrow in a plot of land [the area of which a yoke of oxen could plow in a day].