Job 32:6

3 And he was angry with his three friends, because they had been unable to give him an answer, and had not made Job's sin clear.

4 Now Elihu had kept quiet while Job was talking, because they were older than he;

5 And when Elihu saw that there was no answer in the mouth of the three men, he was very angry.

6 And Elihu, the son of Barachel the Buzite, made answer and said, I am young, and you are very old, so I was in fear, and kept myself from putting my knowledge before you.

7 I said to myself, It is right for the old to say what is in their minds, and for those who are far on in years to give out wisdom.

8 But truly it is the spirit in man, even the breath of the Ruler of all, which gives them knowledge.

9 It is not the old who are wise, and those who are full of years have not the knowledge of what is right.