What does the Bible say about what it means to be a Christian?

The Bible defines a Christian as someone who renounces all reliance on anything apart from Jesus Christ. The term 'Christian' was likely first applied to the believers in Antioch either by outsiders or by the believers themselves, emphasizing that it denotes a relationship and devotion to Christ rather than mere religious affiliation. It's crucial to understand that being a Christian transcends personal or national identities; it is rooted exclusively in faith in Jesus, who is the embodiment of God's truth and purpose for humanity.