What does the Bible say about one Lord and one faith?

Ephesians 4:4-6 states, 'There is one body and one Spirit, even as you are called in one hope of your calling; one Lord, one faith, one baptism; one God and Father of all, who is above all, and through all, and in you all.' This passage underlines the essential unity that exists among believers in Christ. The concept of 'one Lord' refers to Jesus Christ, who reigns sovereign over all and is the head of the church. Likewise, 'one faith' illustrates that salvation is found only in the true Gospel of Christ, which all believers adhere to, affirming that there is no other means of salvation outside of Him.