Ecclesiastes 10:10

10 If the ax is dull and its edge unsharpened, more strength is needed, but skill will bring success.

Ecclesiastes 10:10 in Other Translations

KJV
10 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.
ESV
10 If the iron is blunt, and one does not sharpen the edge, he must use more strength, but wisdom helps one to succeed.
NLT
10 Using a dull ax requires great strength, so sharpen the blade. That’s the value of wisdom; it helps you succeed.
MSG
10 Remember: The duller the ax the harder the work; Use your head: The more brains, the less muscle.
CSB
10 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.

Ecclesiastes 10:10 In-Context

8 Whoever digs a pit may fall into it; whoever breaks through a wall may be bitten by a snake.
9 Whoever quarries stones may be injured by them; whoever splits logs may be endangered by them.
10 If the ax is dull and its edge unsharpened, more strength is needed, but skill will bring success.
11 If a snake bites before it is charmed, the charmer receives no fee.
12 Words from the mouth of the wise are gracious, but fools are consumed by their own lips.
Scripture quoted by permission.  Quotations designated (NIV) are from THE HOLY BIBLE: NEW INTERNATIONAL VERSION®.  NIV®.  Copyright © 1973, 1978, 1984, 2011 by Biblica.  All rights reserved worldwide.