I charge you in the sight of God, and Christ Jesus, and the chosen angels, that you observe these things without prejudice, doing nothing by partiality.
Looking upon him as a father and talk to him as you would a father, entreat him as you would a father. Older people, I think, naturally resent being told by younger people what they ought to do or being rebuked by younger people. So Paul said, Don't rebuke them, entreat him as a father.