Ecclesiastes 10:14

12 The words of a wise man’s mouth are gracious; but the lips of a fool will swallow up himself.

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

A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?

15 The labour of the foolish wearieth every one of them, because he knoweth not how to go to the city.

16 Woe to thee, O land, when thy king is a child, and thy princes eat in the morning!

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Yet the fool multiplies words. No one knows what is coming, and who can tell him what will come after him?
KJV
A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?
WEB
A fool also multiplies words. Man doesn’t know what will be; and that which will be after him, who can tell him?
ASV
A fool also multiplieth words: [yet] man knoweth not what shall be; and that which shall be after him, who can tell him?
DARBY
And the fool multiplieth words: [yet] man knoweth not what shall be; and what shall be after him, who will tell him?
BLB
And the fool multiplies words. Man does not know what will come to be, and of what will come to be after him, who can declare [it] to him?
ÅB
Dåren taler mange ord, enda mennesket ikke vet hva som skal hende, og hvem sier ham hva som skal hende etter hans tid?
OTB
Likevel mangfoldiggjør dåren ord. Ingen vet hva som vil skje, og hvem kan fortelle ham hva som vil komme etter ham?
B1930
Dåren taler mange ord, enda mennesket ikke vet hvad som skal hende, og hvem sier ham hvad som skal hende efter hans tid?

Study notes (Tyndale)

Original text and word study

Cross references