Ecclesiastes 10:10-15

¹⁰If the iron hath been blunt, And he the face hath not sharpened, Then doth he increase strength, And wisdom is advantageous to make right.

¹¹If the serpent biteth without enchantment, Then there is no advantage to a master of the tongue.

¹²Words of the mouth of the wise are gracious, And the lips of a fool swallow him up.

¹³The beginning of the words of his mouth is folly, And the latter end of his mouth Is mischievous madness.

¹⁴And the fool multiplieth words: 'Man knoweth not that which is, And that which is after him, who doth declare to him?'

¹⁵The labour of the foolish wearieth him, In that he hath not known to go unto the city.