Jonathan said to the young man who bore his armor, Come, and let us go over to the garrison of these uncircumcised: it may be that Yahweh will work for us; for there is no restraint to Yahweh to save by many or by few.
Half a furrow of land (1 Samuel 14:14) was half a parcel of land that a yolk of oxen could plow in one day. Evidently God assisted Jonathan by sending a mild earthquake to unnerve the Philistines further (1 Samuel 14:15; cf. Deuteronomy 7:23).