He was different in personal bearing and self concept. He was different in the way he related to God and to people. A human would expect God's son to think and behave as royalty. A human would not expect God's son to think and behave as an humble servant. Christians are God's servants.
Christians create, sustain, and nurture relationships.
Only people whose minds and hearts are directed and controlled by God are committed to relationships. God's servants are committed to relationships because their God is committed to relationships. People ruled by God relate differently to all other people. Christians do not feel, think, or behave as do people who do not belong to God. Christians have different values, different standards, different interests, a different focus, and a different life purpose.