There are three texts that speak of three things that Jesus Christ is.
Psalm 45:7-8 Supremacy of Jesus
"1 My heart is stirred by a noble theme
as I recite my verses for the king;
my tongue is the pen of a skillful writer.
2 You are the most excellent of men
and your lips have been anointed with grace,
since God has blessed you forever.
3 Gird your sword on your side, you mighty one;
clothe yourself with splendor and majesty.
4 In your majesty ride forth victoriously
in the cause of truth, humility and justice;
let your right hand achieve awesome deeds.
5 Let your sharp arrows pierce the hearts of the king’s enemies;
let the nations fall beneath your feet.
6 Your throne, O God,[c] will last for ever and ever;
a scepter of justice will be the scepter of your kingdom.
7 You love righteousness and hate wickedness;
therefore God, your God, has set you above your companions
by anointing you with the oil of joy."
Though not a text that speaks of Christ's divinity necessarily, this certainly points out the highest honor that has been bestowed on the Son, the second person of the Trinity, the Messianic Kingdom which has been handed to him.
Psalm 102:25-27 Deity of Jesus
"24 So I said:
“Do not take me away, my God, in the midst of my days;
your years go on through all generations.
25 In the beginning you laid the foundations of the earth,
and the heavens are the work of your hands.
26 They will perish, but you remain;
they will all wear out like a garment.
Like clothing you will change them
and they will be discarded.
27 But you remain the same,
and your years will never end.
28 The children of your servants will live in your presence;
their descendants will be established before you.”"
The servant in this passage praises YHWH and requests that his life is spared. In the NT, the statement that Christ laid the foundation, is applied to him by the Father, demonstrating that not only is Christ supreme over all, it demonstrates that he is YHWH God just as the Father is. In fact Malachi 3 reinforces the point that God doesn't change and he is forever the same. The Psalmist says this of YHWH, thus according the the Author of Hebrews, Jesus is YHWH, not merely in a agentival sense, but in the true sense.
Psalm 110:1-4 Messiahship of Jesus.
"1 The Lord says to my lord:[a]
“Sit at my right hand
until I make your enemies
a footstool for your feet.”
2 The Lord will extend your mighty scepter from Zion, saying,
“Rule in the midst of your enemies!”
3 Your troops will be willing
on your day of battle.
Arrayed in holy splendor,
your young men will come to you
like dew from the morning’s womb.[b]
4 The Lord has sworn
and will not change his mind:
“You are a priest forever,
in the order of Melchizedek.”
Though speaking of David in the historical context, In it's Messianic application, The Father is speaking to the Son and establishing a place for the Son to sit at his right hand to reign over all as the anointed one or Messiah.
These texts together speak about Jesus' supremacy, His unity with the Father in purpose and deity and his task as the Messiah to save man from sin.
Feel free to check my words out with the scriptures.