Jehovah in Zion It is proper that we should not forget the antithesis I formerly mentioned, namely, that God is great in Zion to destroy and annihilate all the enemies of his Church; and that, when the Psalmist goes on to say, he is high above all nations, his meaning is, not that he presides over them to promote their welfare, but to disconcert their counsels, to baffle their designs, and to subvert all their power. That which immediately follows about the praising of God's name, refers not to the nations at large, but in my opinion to the faithful, from whom alone the prophet demands a tribute of gratitude. For although God compels his vanquished enemies to acknowledge him, yet as they do not cease from speaking against his glory, and blaspheming his holy name, it cannot be to them that the exhortation is addressed, Praise the name of God, for it is holy; but to the faithful, who, from their knowledge of God's holy name, very cordially engage in the celebration of its praises.

The Lord is great in Zion - Compare Psalm 95:3. The meaning here is, not that God is "absolutely" great - which is indeed true - but that there is a sense in which he has shown himself great "in Zion;" that is, in his manifestations toward his own people. He has evinced power in their behalf; he has interposed for them in times of danger; he has so discomfited their enemies as to show that he is a great God - a God worthy to be adored.
And he is high above all the people - Above all the nations. He has them under his control. He rules over all. The God who rules in Zion also rules all the nations of the earth; and his people, therefore, have special occasion to praise him.

The Lord is great in Zion - It is among his own worshippers that he has manifested his power and glory in an especial manner. There he is known, and there he is worthily magnified.

The Lord is great in Zion,.... Where the temple stood, and into which Christ came as the proprietor of it, and gave it a greater glory by his presence than the first temple had; here he preached his doctrines, wrought many of his miracles; here he poured forth the Spirit on his apostles; and from hence went forth his Gospel into all the world: or in Zion, that is, in his church, and among his people; here he grants his gracious presence, and bestows the blessings of his goodness; and shows himself to be great and glorious in his person, offices, and operations; see Psalm 98:1,
and he is high above all people; as God, he is the Creator of them all; in whom they live, move, and have their being, and so must be above them all; as Mediator, he is the Saviour of his own people, and exalted to be so unto them; as King, he is higher than the kings of the earth, and therefore must be above all the rest of the inhabitants of it; he is higher than the heavens, and the angels there, and therefore he must be higher than the earth, and they that dwell in it; he is highly exalted above every name that is named in this world, or in that to come.

great in Zion--where He dwells (Psalm 9:11).