yes, that's my understanding.
see John chapter 1 -- Jesus is the Word of God. also verse 11 here in Revelation - He is called Faithful & True; see John 14:6, Jesus said of Himself "I AM the Truth" -- moreover verse 15, He has a sword coming out of His mouth; this motif is repeated a number of times in the Bible and always associated with Christ & never anyone else. it is in . 15 as well, that He shall rule the nations with an iron scepter -- see Psalm 2:9, this is a clear reference to the Messiah. there are other markers here in the text too, but suffice these 3 to show you that this definitely Jesus Christ being spoken of, without any question or disagreement among any theologians.
however it is also clear here -- He has a name that no one but He Himself knows. but clearly also, there is nothing that God in heaven does not know; He is omniscient & knows all things -- so to say of any kind of knowledge, 'no one but He knows it' there is only one "He" that can possibly be spoken of; God Himself, from whom nothing is secret. i could quote 50 verses telling you this and if you know your Koran you could show me many more in it, too.
therefore Jesus Christ is God. see also John 21:17
Lol, that Psalms reference is to David.
Psalms 2
Psalms89:27 Also I will make him my firstborn, higher than the kings of the earth. That's David too.
So David is God's First one. ok?
1 Why do the heathen rage, and the people imagine a vain thing?
2 The kings of the earth set themselves, and the rulers take counsel together, against the Lord, and against his
anointed, saying,
3 Let us break their bands asunder, and cast away their cords from us.
4 He that sitteth in the heavens shall laugh: the Lord shall have them in derision.
5 Then shall he speak unto them in his wrath, and vex them in his sore displeasure.
6 Yet have I set my king upon my holy hill of Zion.
7 I will declare the decree: the Lord hath said unto me, Thou art my Son; this day have I begotten thee.
8 Ask of me, and I shall give thee the heathen for thine inheritance, and the uttermost parts of the earth for thy possession.
9 Thou shalt break them with a rod of iron; thou shalt dash them in pieces like a potter's vessel.
10 Be wise now therefore, O ye kings: be instructed, ye judges of the earth.
11 Serve the Lord with fear, and rejoice with trembling.
12 Kiss the Son, lest he be angry, and ye perish from the way, when his wrath is kindled but a little. Blessed are all they that put their trust in him.
Got it? It is clearly talking to the people who had problem with David. For God's Sake man.