Bamidbar – 11:16 – And G-d said to Moshe, gather for Me seventy men of the elders of Israel who you know to be elders of the people and its officers; take them to the Tent of Meeting and have them stand there with you.
Gemora: Jerusalem Talmud: Sanhedrin: Chapter 11: Halacha 1: We learn in a beraita – what does the posuk in Ecclesiates (12,11) mean that says: “ The words of the wise are like spurs, and like nails well driven in are the sayings of the masters of collections.”? Masters of Collections refers to the Sanhedrin. As it says in the posuk, gather for Me seventy elders.
DBS Note: The word for ‘gather’ and the word for ‘collections’ are related. In this way we see that our posuk and the posuk in Ecclesiastes are thematically related.
Torah Temimah Colloquial Translation on Note #11:
It appears that the reason for gathering a group of elders is because everything that comes out of the mouth of a single person is inherently unclear. It could be that he made a mistake and erred. This is not the case, however, with a decision that is derived by a group of wise people. Such a decision is strong, like nails well driven in. [validate this translation!] Since many deliberated over it, certainly they have plumbed its depths to bring out the true truth of the issue.
Based on this fundamental principle, we have explained elsewhere the well-known saying, “these and these are the words of the Living G-d”. This phrase has eluded many who have tried to understand it. How can it be that this one who says “permitted” and this one who says “forbidden” are both words of the Living G-d? Isn’t the truth one or the other? That is why we explained that the intent of the saying is that it is precisely through different opinions that contradict each other that the truth of an issue is derived. It is because of this principle that we can say that “these and these are the words of the Living G-d”.
In other words, this is exactly what G-d wanted, that there would be different opinions in order that an issue would be clarified and explained well.
DBS Note: The Torah Temimah is saying that it is only through the diversity of respected, yet differing opinions, that the truth can be derived.