Ge 50:15 ¶ When Joseph's brothers saw that their father was dead, they said, "Perhaps Joseph will hate us, and may actually repay us for all the evil which we did to him."
We have already seen that Joseph's ten brothers lacked the beginning of wisdom and the beginning of knowledge. Now, after years of receiving kindness from Joseph, they could not believe that he had forgiven them. Why not?
God works in the lives of His saints to love one another, but Joseph's brothers had successfully fought off that work of God. They "judged" Joseph, fearing that he would commit the same sin that they would have committed:revenge.
Don't follow people who like to fight. They don't know what they're doing, and they don't understand what God is doing.