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

English Standard Version
If the iron is blunt, and one does not sharpen the edge, he must use more strength, but wisdom helps one to succeed.

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

King James Bible
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.

New American Standard Bible
If the axe is dull and he does not sharpen its edge, then he must exert more strength. Wisdom has the advantage of giving success.

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

Darby Bible Translation
If the iron be blunt, and one do not whet the edge, then must he apply more strength; but wisdom is profitable to give success.

Douay-Rheims Bible
If the iron be blunt, and be not as before, but be made blunt, with much labour it shall be sharpened: and after industry shall follow wisdom.

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

Young's Literal Translation
If the iron hath been blunt, And he the face hath not sharpened, Then doth he increase strength, And wisdom is advantageous to make right.

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