Who alone hath done great wonders Under this term he comprehends all God's works from the least to the greatest, that he may awaken our admiration of them, for notwithstanding the signal marks of inconceivably great wisdom and divine power of God which are inscribed upon them we are apt through thoughtlessness to undervalue them. He declares that whatever is worthy of admiration is exclusively made and done by God, to teach us that we cannot transfer the smallest portion of the praise due to him without awful sacrilege, there being no vestige of divinity in the whole range of heaven and earth with which it is lawful to compare or equal him. He then proceeds to praise the wisdom of God, as particularly displayed in the skill with which the heavens are framed, giving evidence in a surprising degree of the fine discrimination with which they are adorned. Next he comes to speak of the earth, that he may lead us to form a proper estimate of this great and memorable work of God, stretching forth as it does a bare and dry superficies above the waters. As these elements are of a spherical form, the waters, if not kept within their limits, would naturally cover the earth, were it not that God has seen fit to secure a place of habitation for the human family. This philosophers themselves are forced to admit as one of their principles and maxims. The earth's expanded surface, and the vacant space uncovered with water, has been justly considered therefore one of the great wonders of God. And it is ascribed to his mercy, because his only reason for displacing the waters from their proper seat was that regard which he had in his infinite goodness for the interests of man.

To him who alone doeth great wonders - Miracles; marvelous things; things which spring from his direct and absolute power; things lying beyond the range of natural laws. See the notes at Psalm 72:18.
For his mercy - For all these mighty wonders are performed in carrying out purposes of mercy. So the wonders which were done in Egypt were for the deliverance of an oppressed people; so the miracles performed by the Saviour and his apostles were to remove disease and pain, and to establish a religion of mercy; so the divine interpositions among the nations are to assert the principles of righteousness, to secure the reign of order and love, and to promote the welfare of mankind.

Who alone doeth great wonders - Miracles. No power but that which is almighty can work miracles, נפלאות niphlaoth, the inversion, or suspension, or destruction of the laws of nature.

To him who alone doeth great wonders,.... As in the works of creation at first, having no help from angels or men; so in the works of providence, many of which are unsearchable, and past finding out, and in which he has no assistance from creatures; and in the works of grace, redemption, and salvation, which his own arm has wrought out; as well as what he did when here on earth in our nature; the miracles then wrought by his omnipotent arm alone; and even all the wonders which Moses and Elijah did under the Old Testament, and the apostles of Christ under the New, were done, not by their power, but by his alone; who will do still greater wonders, when he shall create all tidings new, raise the dead, and summon all nations before him, and render to everyone according to his works;
for his mercy endureth for ever: towards his people, for whose sake all these wonders are wrought.

alone--excluding all help.