Whoever digs a pit may fall into it;(A)
    whoever breaks through a wall may be bitten by a snake.(B)
Whoever quarries stones may be injured by them;
    whoever splits logs may be endangered by them.(C)

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

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He that diggeth a pit shall fall into it; and whoso breaketh an hedge, a serpent shall bite him.

Whoso removeth stones shall be hurt therewith; and he that cleaveth wood shall be endangered thereby.

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.

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