19 There were no blacksmiths in the land of Israel in those days. The Philistines wouldn't allow them for fear they would make swords and spears for the Hebrews. 20 So whenever the Israelites needed to sharpen their plowshares, picks, axes, or sickles, they had to take them to a Philistine blacksmith. 21 The charges were as follows: a quarter of an ounce of silver for sharpening a plowshare or a pick, and an eighth of an ounce for sharpening an ax or making the point of an ox goad. 22 So on the day of the battle none of the people of Israel had a sword or spear, except for Saul and Jonathan.
Matthew Henry's Commentary on 1 Samuel 13:19-22
Commentary on 1 Samuel 13:15-23
(Read 1 Samuel 13:15-23)
See how politic the Philistines were when they had power; they not only prevented the people of Israel from making weapons of war, but obliged them to depend upon their enemies, even for instruments of husbandry. How impolitic Saul was, who did not, in the beginning of his reign, set himself to redress this. Want of true sense always accompanies want of grace. Sins which appear to us very little, have dangerous consequences. Miserable is a guilty, defenceless nation; much more those who are destitute of the whole armour of God.