How do we know that Jesus is the King of the Kingdom of Heaven?

The authority of Jesus as King is established both in scripture and through His redemptive work. He is referred to as 'King of Kings and Lord of Lords' in Revelation 19:16, which underscores His sovereign rule over all creation. Furthermore, scriptures such as Matthew 28:18 affirm that all authority in heaven and earth has been given to Him. This kingship is not a result of human election but rather a divine appointment by God, who sent Christ as the promised King to redeem His people and establish His Kingdom.