If the axe is dull and the blade unsharpened, more strength must be exerted, but skill produces success.

Deuteronomy 32:41
when I sharpen My flashing sword, and My hand grasps it in judgment, I will take vengeance on My adversaries and repay those who hate Me.

Ecclesiastes 2:13
And I saw that wisdom exceeds folly, just as light exceeds darkness:

Ecclesiastes 10:9
The one who quarries stones may be injured by them, and he who splits logs endangers himself.

Ecclesiastes 10:11
If the snake bites before it is charmed, there is no profit for the charmer.

If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.