Ecclesiastes 10:13

13 The beginning of the words of his mouth is folly: and the end of his talk mischievous madness.

Ecclesiastes 10:13 Meaning and Commentary

Ecclesiastes 10:13

The beginning of the words of his mouth [is] foolishness
As soon as ever he opens his mouth, he betrays his folly; the first word he speaks is a foolish one; or it is from the abundant folly in his heart that he speaks, which is the source and spring of all his foolish talk; and the end of his talk [is] mischievous madness;
to himself and others; as he goes on, he appears more and more foolish, and yet more confident of his own wisdom; and is resolutely set on having his own way and will; grows warm, and is violently hot, to have his own words regarded; and, if contradicted, is like a madman, scattering arrows, firebrands, and death; his talk from first to last is a circle of folly; and, though it begins with something weak, and may seem innocent, yet it ends and issues in wickedness and madness, in rage and wrath, in oaths and curses.

Ecclesiastes 10:13 In-Context

11 If a serpent bite when there is no whisper, then there is no advantage to the charmer.
12 The words of a wise mouth are gracious: but the lips of a fool will swallow him up.
13 The beginning of the words of his mouth is folly: and the end of his talk mischievous madness.
14 A fool moreover multiplies words: man knows not what has been, nor what will be: who shall tell him what will come after him?
15 The labour of fools will afflict them, who knows not to go to the city.

The Brenton translation of the Septuagint is in the public domain.