John 14:21 "He who has My commandments and keeps them, it is he who loves Me."
Unlike his brothers, Joseph obeyed his father. While Jacob favored him because he was the son of his old age, Joseph's conduct was a factor in continuing that love. The Christians who love Jesus the most aren't the ones who shout the most, arent't the ones who criticize the most, and aren't even the ones who read the Bible the most. The ones who OBEY are the ones who love Jesus the most.
Jesus continued in John 14:21 "And he who loves Me will be loved by My Father, and I will love him and manifest Myself to him." These Christians have a different viewpoint of Jesus than other Christians have. They place Him in a different position in their lives, and they re-act to Him differently, because they know more about Him.
This relationship with their father made Jacob's other ten sons jealous, and it sometimes makes Christians jealous as well.