Carl Friedrich Keil and Franz Delitzsch Old Testament Commentary
This strophe, with which the first part of the song closes, contains the logical apodosis of those imprecatory jussives. The downfall of the power that is opposed to God will be followed by the joy of triumph. The bones of the body, which elsewhere are mentioned as sharing only in the anguish of the soul (Psa 6:3; Psa 31:11; Psa 32:3; Psa 51:10), are here made to share (as also in Psa 51:10) in the joy, into which the anxiety, that agitated even the marrow of the bones, is changed. The joy which he experiences in his soul shall throb through every member of his body and multiply itself, as it were, into a choir of praiseful voices. כּל with a conjunctive accent and without Makkeph, as also in Pro 19:7 (not כּל־, vid., the Masora in Baer's Psalterium p. 133), is to be read cāl (with קמץ רחב, opp. קמץ חטוף) according to Kimchi. According to Lonzano, however, it is to be read col, the conjunctive accent having an equal power with Makkeph; but this view is false, since an accent can never be placed against Kametz chatuph. The exclamation מי כמוך is taken from Exo 15:11, where, according to the Masora, it is to be pointed מי כמוך, as Ben Naphtali also points it in the passage before us. The Dagesh, which is found in the former passage and is wanting here, sharpens and hardens at the same time; it requires that the expression should be emphatically pronounced (without there being any danger in this instance of its being slurred over); it does not serve to denote the closer connection, but to give it especial prominence. חזק ממּנוּ, stronger than he, is equivalent to: strong, whereas the other is weak, just as in Jer 31:11, cf. Hab 1:13, צדּיק ממּנוּ, righteous, whereas he is ungodly. The repetition of ועני is meant to say: He rescues the עני, who is אביון (poor) enough already, from him who would take even the few goods that he possesses.
John Gill Bible Commentary
And my soul shall be joyful in the Lord,.... Not in the destruction of his enemies, but in the God of his salvation; the Targum is, "in the Word of the Lord"; the essential Word of God, the promised Messiah, Saviour, and Redeemer. Christ is the object of a believer's joy; he rejoices in his person, as he is the mighty God, able to save him, and to keep what he has committed to him, and to preserve him from falling; as he is God and man in one person, and so fit to be a Mediator between God and man; and as he is a Prophet to instruct him, a Priest to expiate his sin and make intercession for him, and as a King to rule over, protect, and defend him; and as he stands in the relations of a father, husband, brother, and friend: he rejoices in what he has done and is doing; in that this Word is made flesh, and has obtained eternal redemption, and now appears in the presence of God, as an advocate and intercessor: it follows,
it shall rejoice in his salvation; that which Jehovah the Father has determined upon, provided for, and has formed the scheme of; that which Jehovah the Son undertook to accomplish, and now has finished; and that which Jehovah the Spirit had made a discovery and application of unto the psalmist, in answer to his request in Psa 35:3. This filled him with so much joy, as it does every believer that has a view of interest in it; seeing hereby the law is fulfilled, justice is satisfied, sin is atoned for, the pardon of it is procured, an everlasting righteousness is brought in, and a solid foundation laid for hope of eternal glory and happiness.