Why do many Christians seem to think they are superior to everyone else?

The perception that some Christians feel superior is a failure to live out the Gospel, which teaches humility and servanthood (Philippians 2:3). This attitude is rooted in human pride, often confusing God’s unconditional acceptance of the believer (salvation) with their own performance (sanctification). True Christian identity is not defined by judgment of others, but by acknowledging one's own great sin and extending the same grace received to all people (Romans 3:23-24).