Why is the concept of the King important for Christians?

The concept of the King is crucial for Christians because it embodies the authority and sovereignty of Christ in the realm of salvation. As the King who sits on the throne, Jesus not only reigns victoriously but also serves as the mediator and high priest for His elect. His position means that He has already accomplished salvation, as He declared on the cross 'It is finished' (John 19:30). Understanding Christ as the King signifies both His ruling power and His merciful intention towards those He loves, demonstrating that believers are covered by His grace and are made righteous through His blood.