'Sharpen' in the Bible

when I sharpen My flashing sword,and My hand takes hold of judgment,I will take vengeance on My adversariesand repay those who hate Me.

So all the Israelites went to the Philistines to sharpen their plows, mattocks, axes, and sickles.

If anyone does not repent,God will sharpen His sword;He has strung His bow and made it ready.

who sharpen their tongues like swordsand aim bitter words like arrows,

If the ax is dull, and one does not sharpen its edge,then one must exert more strength;however, the advantage of wisdom is that it brings success.

Sharpen the arrows!Fill the quivers!The Lord has put it into the mindof the kings of the Medesbecause His plan is aimed at Babylonto destroy her,for it is the Lord’s vengeance,vengeance for His temple.