What does the Bible say about Christ's kingly office?

The Psalms, particularly Psalm 2, declare the establishment of Christ’s kingly office by God Himself. In verse 6, it emphatically states, 'Yet have I set my King upon my holy hill of Zion.' This declares that Christ is the anointed one who reigns with authority over the nations. In the New Testament, this prophetically fulfilled role is acknowledged by the apostles, as evidenced in Acts 4:25-28, where the psalm is referenced in relation to Jesus. The declaration of God’s sovereign choice of Christ as King is foundational to understanding His mediatorial responsibilities and ultimate authority over all creation. In essence, He is God's designated ruler who will judge and save, reflecting both His divine kingship and His humanity.