He shall cry unto me, Thou art my Father - He shall appeal to me, or come to me as a Father, and as his only hope and defense.

My God - He shall come to me as God, and shall recognize me as his God, his only trust and hope.

And the rock of my salvation - See the notes at Psalm 18:2. The meaning of all this is, that he would at all times recognize him as his only trust and hope, and that he would be faithful on his part to God.

He shall cry unto me, thou art my Father,.... Not by creation, as he is the Father of angels and men; nor by adoption, as he is the Father of saints; but by generation, being the begotter of him, Psalm 2:7 so that he is Christ's own and proper Father, and Christ is his own and proper Son, John 5:18, and he frequently called him his Father, and asserted him to be in this relation to him, John 5:17, John 10:30, and addressed him, called upon him, and prayed unto him as such, Matthew 11:25, "my God"; that chose him to be the Mediator, Redeemer, and Saviour; who made a covenant with him, his chosen; who prepared and provided the human nature of Christ; anointed him with the gifts and graces of his Spirit, and supported him in his sufferings, and crowned him with glory and honour; whom Christ loved as his God, trusted in him as such, obeyed him, and prayed unto him: he called him his God, owned him to be so, and called upon him, and cried unto him, as such, John 20:17. God is the Father of Christ, as Christ is a divine Person; and he is the God of Christ, as Christ is man: these two relations frequently go together in the New Testament, John 20:17. It is added,

and the Rock of my salvation; that bore him up, and where he stood firm, while he was working out the salvation of his people; and though he was not saved from sufferings and death, yet he was quickly delivered from the grave, and raised from the dead, and set at the right hand of God, where he must reign till all enemies are put under his feet.

He shall cry unto me, Thou art my {y} father, my God, and the rock of my salvation.

(y) His excellent dignity will appear in this, that he will be named the son of God and the firstborn in which he is a figure of Christ.

26, 27. first-born-one who is chief, most beloved or distinguished (Ex 4:22; Col 1:15). In God's sight and purposes he was the first among all monarchs, and specially so in his typical relation to Christ.

89:19-37 The Lord anointed David with the holy oil, not only as an emblem of the graces and gifts he received, but as a type of Christ, the King Priest, and Prophet, anointed with the Holy Ghost without measure. David after his anointing, was persecuted, but none could gain advantage against him. Yet all this was a faint shadow of the Redeemer's sufferings, deliverance, glory, and authority, in whom alone these predictions and promises are fully brought to pass. He is the mighty God. This is the Redeemer appointed for us, who alone is able to complete the work of our salvation. Let us seek an interest in these blessings, by the witness of the Holy Spirit in our hearts. As the Lord corrected the posterity of David for their transgressions, so his people shall be corrected for their sins. Yet it is but a rod, not a sword; it is to correct, not to destroy. It is a rod in the hand of God, who is wise, and knows what he does; gracious, and will do what is best. It is a rod which they shall never feel, but when there is need. As the sun and moon remain in heaven, whatever changes there seem to be in them, and again appear in due season; so the covenant of grace made in Christ, whatever alteration seems to come to it, should not be questioned.