Who is involved in the New Covenant?

The persons involved in the New Covenant include God the Father, God the Son (Jesus Christ), and those whom Christ redeems. Jeremiah 31:31-34 and several New Testament references indicate that God intended this covenant for His people, uniquely connected through faith in Christ. While the old covenant was established directly with Israel, the New Covenant encompasses all who believe in Christ, who serves as their federal head. This covenant emphasizes grace and the unity of believers in Christ, who fulfilled the law on their behalf and redeemed them from sin.