Psalms 45:6-7
6. No lawful construction can be devised to change the sense here given and sustained by the ancient versions, and above all by Paul (Heb 1:8). Of the perpetuity of this government, compare 2Sa 7:13; Ps 10:16; 72:5; 89:4; 110:4; Isa 9:7.
7. As in Ps 45:6 the divine nature is made prominent, here the moral qualities of the human are alleged as the reason or ground of the mediatorial exultation. Some render "O God, thy God," instead of
God, thy God—but the latter is sustained by the same form (Ps 50:7), and it was only of His human nature that the anointing could be predicated (compare Isa 61:3). oil of gladness—or token of gladness, as used in feasts and other times of solemn joy (compare 1Ki 1:39, 40). fellows—other kings.Isaiah 42:21
21. his righteousness—not His people's, but His own; Isa 42:24 shows that they had no righteousness (Isa 45:24; 59:16). God is well pleased with His Son ("in whom My soul delighteth," Isa 42:1), "who fulfils all righteousness" (Mt 3:15) for them, and with them for His sake (compare Isa 42:6; Ps 71:16, 19; Mt 5:17; Ro 10:3, 4; Php 3:9). Perhaps in God's "righteousness" here is included His faithfulness to His promises given to Israel's forefathers [ROSENMULLER]; because of this He is well pleased with Israel, even though displeased with their sin, which He here reproves; but that promise could only be based on the righteousness of Messiah, the promised seed, which is God's righteousness.