For thou art great, and doest wondrous things - Things suited to excite wonder or admiration; things which lie beyond the power of any creature, and which could be performed by no one but a being of almighty power. A God who could do these things could also do that which the psalmist asked of him, for what God actually does proves that there is nothing within the limits of possibility which he cannot perform. The greatness and the power of God are reasons why we should appeal to him in our weakness, and in our times of trouble.

Thou art God alone - Thou only canst do what a God can do, or what belongs to God. In those things, therefore, which require the interposition of divine power our appeal must be to thee alone. So in the matter of salvation.

For thou art great - Almighty, infinite, eternal.

And doest wondrous things - ועשה נפלאות veoseh niphlaoth; thou art the Worker of miracres. This thou hast done in numerous instances, and thereby showed thy infinite power and wisdom.

This appears to be a prophecy of the calling of the Gentiles to the faith of Christ, and the evidence to be given to his Divine mission by the miracles which he should work.

Thou art God alone - Συ ει ὁ Θεος μονος ὁ μεγας - Sept. Thou art the only, The Great God. In this the Ethiopic and Arabic agree.

For thou art great,.... In his nature, and the perfections of it; in his power, wisdom, truth, faithfulness, love, grace, and mercy; and in all his persons; the Father is great, greater than all; the Son is the great God, and our Saviour; and the Spirit, which is in his people, is greater than he that is in the world:

and doest wondrous things; in nature and providence; such as the forming of all things out of nothing; upholding all things by the word of his power; the formation of man, soul and body, and the union of both; and the constant government of the world; and more especially in grace, as the provision in the covenant in eternity, the mission of Christ in time, the conversion of a sinner, and bringing him to eternal glory:

thou art God alone; to the exclusion of all such who are not gods by nature; but not to the exclusion of the Son and Spirit, who are, with the Father, the one God, 1 John 5:7.

For thou art great, and doest wondrous things: thou art God alone.

86:8-17 Our God alone possesses almighty power and infinite love. Christ is the way and the truth. And the believing soul will be more desirous to be taught the way and the truth. And the believing soul will be more desirous to be taught the way and the truth of God, in order to walk therein, than to be delivered out of earthly distress. Those who set not the Lord before them, seek after believers' souls; but the compassion, mercy, and truth of God, will be their refuge and consolation. And those whose parents were the servants of the Lord, may urge this as a plea why he should hear and help them. In considering David's experience, and that of the believer, we must not lose sight of Him, who though he was rich, for our sakes became poor, that we through his poverty might be rich.