On the other hand, Ps 44:7-8 presents the Messiah, the Son of God, as God, who will reign forever. His scepter will turn neither to the right nor to the left, but will point the way straight ahead, a ράβδος εὐθύτητος.
He will be furnished with every kind of blessing, greater than those received by His partakers, that is, Christians, His co-heirs (Rom 8:17) and fellow rulers (2 Tim 2:12).
Moreover, Ps 101:26-28 bears witness to the Lord, the Creator of heaven and earth. From the Apostle’s point of view, as noted above in verse 2, this means the Son of God.
He remains eternally equal to Himself, while He deals with the created world as He wills. Even the heavens themselves, which seem to us so unchangeable, are in fact doomed to perish, even the highest, πάντες.
Finally, Ps 109:1 ascribes to the Son sitting at the right hand of Jehovah, that is, participation in Jehovah’s dominion.