King for the Lord, i.e. in the Lord's name and stead, both in general, because all kings have and hold their kingdoms from God, and act as his viceregents and deputies; and in a special manner, because he sat in God's own throne and ruled over God's peculiar people, and did in a singular and eminent manner maintain the honour and worship of God in his land, and in the eyes of all the world besides.
Related Commentaries of 2 Chronicles 9:8
2 Chronicles 9:8
8 Blessed be the LORD thy God, which delighted in thee to set thee on his throne, to be king for the LORD thy God: because thy God loved Israel, to establish them for ever, therefore made he thee king over them, to do judgment and justice.