Cross reference
Ecclesiastes 10:14
14 The foolish are full of words; man has no knowledge of what will be; and who is able to say what will be after him?
Proverbs 15:2
2 Knowledge is dropping from the tongue of the wise; but from the mouth of the foolish comes a stream of foolish words.
Ecclesiastes 3:22
22 So I saw that there is nothing better than for a man to have joy in his work--because that is his reward. Who will make him see what will come after him?
Ecclesiastes 5:3
3 When you take an oath before God, put it quickly into effect, because he has no pleasure in the foolish; keep the oath you have taken.
Ecclesiastes 6:12
12 Who is able to say what is good for man in life all the days of his foolish life which he goes through like a shade? who will say what is to be after him under the sun?
Ecclesiastes 8:7
7 No one is certain what is to be, and who is able to say to him when it will be?
Job 34:37
37 For in addition to his sin, he is uncontrolled in heart; before our eyes he makes sport of God, increasing his words against him.
Job 35:16
16 And Job's mouth is open wide to give out what is of no profit, increasing words without knowledge.
Proverbs 10:19
19 Where there is much talk there will be no end to sin, but he who keeps his mouth shut does wisely.
James 4:13-14
13 How foolish it is to say, Today or tomorrow we will go into this town, and be there for a year and do business there and get wealth:
14 When you are not certain what will take place tomorrow. What is your life? It is a mist, which is seen for a little time and then is gone.