King James Version (KJV) - Ecclesiastes 10:10 >

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.

Berean Study Bible (BSB) - Ecclesiastes 10:10 >

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