Jesus is enthroned as King!

Peter, in his sermon in the 2nd chapter of Acts, declared:

32 God has raised this Jesus to life, and we are all witnesses of the fact.
33 Exalted to the right hand of God, he has received from the Father the promised Holy Spirit and has poured out what you now see and hear.
34 For David did not ascend to heaven, and yet he said, "'The Lord said to my Lord: "Sit at my right hand
35 until I make your enemies a footstool for your feet."'
36 "Therefore let all Israel be assured of this: God has made this Jesus, whom you crucified, both Lord and Christ."

In verse 36, we're told that God has made Jesus Lord and Christ.
Hasn't he always been Lord and Christ?
Yes, but now he has been enthroned in heaven and rules at the right hand of God

After his resurrections, Jesus declared that "All authority in heaven and on earth has been given to me." (Matthew 28:18)

In Ephesiand 1:20-23 Paul briefly describes the fact of Christ's coronation:
"God has seated him (Christ) at his right hand in the heavenly realms, far above all rule and authority, power and dominion, and every title that can be given, not only in the present age but also in the one to come. And God placed all things under his feet and appointed him to be head over everything for the church"

Here are a few OT passages about Christ's enthronement:
Psalms 2:8 "Ask of me, and I will make the nations your inheritance, the ends of the earth your possession."

Isaiah 52:13: "See, my servant will act wisely ; he will be raised and lifted up and highly exalted."