This episode (Revelation 1:4-8) unveils the central themes of The book of Revelation, namely the revelation and glory of Jesus Christ, and the role of the triune God behind it. Jesus Christ is the faithful witness, the firstborn from the dead, and the ruler of the kings of the earth. The passage links these descriptions of Christ's Person to His work of loving his spiritual children, cleansing them from sin, and elevating them to be priests and kings in the service of the God who is the ultimate ruler of all, the Alpha and Omega of all that exists.