1 Samuel 13:20-21
13:20 So all Israel had to go down to the Philistines in order to get their plowshares, cutting instruments, axes, and sickles
sharpened.
13:21 They charged
two-thirds of a shekel
to sharpen plowshares and cutting instruments, and a third of a shekel
to sharpen picks and axes, and to set ox goads.
Proverbs 25:18
25:18 Like a club or a sword or a sharp arrow,
so is the one who testifies against his neighbor as a false witness.
Isaiah 7:25
7:25 They will stay away from all the hills that were cultivated, for fear of the thorns and briers.
Cattle will graze there and sheep will trample on them.