The fool multiplies his words. A man does not know what has been before him, and who is able to reveal to him what will be in the future after him
Other versions
King James Version
A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him? English Standard Version
A fool multiplies words, though no man knows what is to be, and who can tell him what will be after him?New International Version
and the fool multiplies words. No one knows what is coming- who can tell him what will happen after him?