David
Psalm 45:6BSB·traditional attribution

Your throne, O God, endures forever and ever, and justice is the scepter of Your kingdom.

John Calvin Reformed @genevareformer

PSALM 45 In this psalm, the grace and beauty of Solomon, his virtues in ruling the kingdom, and also his power and riches, are illustrated and described in terms of high commendation. More especially, as he had taken to wife a stranger out of Egypt, the blessing of God is promised to him in this relationship, provided the newly espoused bride, bidding adieu to her...

Commenting on Psalm 45:1-17

C.H. Spurgeon Reformed Baptist @princeofpreachers

Thy throne, O God, is for ever and ever. To whom can this be spoken but our Lord? The psalmist cannot restrain his adoration. His enlightened eye sees in the royal Husband of the church, God, God to be adored, God reigning, God reigning everlastingly. Blessed sight! Blind are the eyes that cannot see God in Christ Jesus!

Matthew Henry Presbyterian @wholebiblehenry

We have here the royal bridegroom filling his throne with judgment and keeping his court with splendour. I. He here fills his throne with judgment. It is God the Father that says to the Son here, Thy throne, O God! is forever and ever, as appears Heb 1:8, Heb 1:9, where this is quoted to prove that he is God and has a more excellent name than the angels.

Commenting on Psalm 45:6-9