In the first paragraph, of "Sinners in the Hands of an Angry God," what generalization does Edwards make about all people?

Taken literally, Edwards makes no generalizations about all people in the first paragraph of "Sinners in the Hands of an Angry God." Edwards begins by using an Old Testament verse from Deuteronomy as his text. The verse records God's words to the Israelites of Moses's time, and Edwards clearly declares that the verse is referring to "the wicked unbelieving Israelites."
However, by application, Edwards certainly means to equate the characteristics of the Israelites with those of at least certain members of his audience. The title page of the printed copy of the sermon, published in the year it was delivered, titles the piece "Mr. Edwards's Sermon on the Dangers of the Unconverted." One can assume that Edwards's remarks are directed primarily at those who have not professed Jesus Christ as their Savior. Therefore, when he uses the example of the Israelites, he specifically equates them with the "unconverted" people in his audience, not all people.
What traits do the Israelites have that the unconverted also have? They are "void of counsel," which means that they do not listen to good advice. They have "no Understanding in them," which means that they do not display basic reasoning skills. Moreover, they "brought forth bitter and poisonous Fruit." In the Bible, fruit is a common metaphor for the results of one's actions. To produce bitter and poisonous fruit is to live in such a way that negative consequences flow from one's deeds.
At the beginning of Edwards's sermon, he paints the picture of his target audience as stubborn people whose actions harm themselves and others.