Jesus Christ, the faithful witness, the firstborn from the dead, and the ruler over the kings of the earth.
To Him who loved us and washed us from our sins in His own blood, and has made us kings and priests to His God and Father, to Him be glory and dominion forever and ever. Amen.
Behold, He is coming with clouds, and every eye will see Him, even they who pierced Him. And all the tribes of the earth will mourn because of Him. Even so, Amen.
“I am the Alpha and the Omega, the Beginning and the End,” says the Lord, “who is and who was and who is to come, the Almighty.”

In the greeting here Lord God Jehovah, the great "I am" - Who is, Who was and Who is to come - stands first. Then follows the Holy Spirit in His own, spoken of as "the seven Spirits." And finally the name of our Lord. "He is the faithful witness," who lived as such in holiness and perfect obedience on earth. "The Firstborn [begotten] from the dead". He died that shameful death on the cross, naked and alone, due to our sin, and God raised Him from the dead. "The Ruler [prince] of the kings of the earth" (See also Zechariah 14:9) which is is His future title and glory.

Annotated Bible – Arno Clement Gaebelein 1919