3 For you are my rock and my fortress, therefore for your name's sake lead me and guide me.
*Minor differences ignored. Grouped by changes, with first version listed as example.
For thou art my rock. This verse may be read as one sentence, thus: As thou art like a tower for my defense, for thy name's sake direct and guide me during my whole life. And thus the conjunction, as in many similar cases, would be superfluous. But I rather prefer a different sense, namely, that David, by interjecting this reflection, encourages himself not only to earnestness in prayer, but also in the confident hope of obtaining his requests. We know, at all events, that it is usual with him to mingle such things in his prayers as may serve to remove his doubts, and to confirm his assurance. Having, therefore, expressed his need, he assures himself, in order to encourage and animate himself, that his prayer shall certainly have a happy answer. He had formerly said, Be thou my strong rock and fortress; and now he adds, Assuredly thou art my rock, and my fortress: intimating, that he did not throw out these words rashly, like unbelievers, who, although they are accustomed to ask much from God, are kept in suspense by the dread of uncertain events. From this he also draws another encouragement, that he shall have God for his guide and governor during the whole course of his life. He uses two words, lead and guide, to express the same thing, and this he does (at least so I explain it) on account of the various accidents and unequal vicissitudes by which the lives of men are tried: as if he had said, Whether I must climb the steep mountain, or struggle along through rough places, or walk among thorns, I trust that thou wilt be my continual guide. Moreover, as men will always find in themselves matter for doubt, if they look to their own merits, David expressly asks that God may be induced to help him for his own name's sake, or from regard to his own glory, as, properly speaking, there is no other thing which can induce him to aid us. It must therefore be remembered, that God's name, as it is opposed to all merit whatever, is the only cause of our salvation. In the next verse, under the metaphor of a net, he appears to designate the snares and artifices with which his enemies encompassed him. We know that conspiracies were frequently formed against his life, which would have left him no room for escape; and as his enemies were deeply skilled in policy, and hating him with an inconceivable hatred, were eagerly bent on his destruction, it was impossible for him to be saved from them by any human power. On this account he calls God his strength; as if he had said, He alone is sufficient to rend asunder all the snares with which he sees his afflicted people entangled.
For thou art my rock and my fortress - See the notes at Psalm 18:2.
Therefore for thy name's sake - For the sake of thine own honor, or for the glory of thy name. See the notes at Psalm 23:3. That is, since thou art my rock and my defense - since I put my trust in thee - show, by leading and guiding me, that my trust is well founded, or that this is Thy character, and that Thou wilt be true and faithful to those who commit their all to thee. See the notes at Psalm 31:1.
For thou art my rock and my fortress,.... What he prayed for he knew him to be, and to have been in times past, and could claim his interest in him; and therefore entreats that he would appear to be to him what he was in himself, and what he had been to him;
therefore for thy name's sake lead me, and guide me; either as a shepherd does his flock, gently, as they are able to bear it; into the green pastures of the word and ordinances, and beside the still waters of divine love, and to the overflowing fountain, and fulness of grace in himself; or as a general leads and guides his army; Christ being a Leader and Commander of the people, and the great Captain of their salvation, and who being at the head of them, they fear no enemy; or as a guide leads and directs such as are ignorant, and out of the way. The psalmist desires the Lord would lead him in the way of truth and paths of righteousness, according to his word; and guide him with his counsel, and by his Spirit, that so he might walk in the way in which he should go; and this he entreats he would do "for his name's sake"; not for any merit or worthiness in him; but for the glory of his own name, and for the honour of his free grace and mercy, for which the Lord often does many things; he defers his anger, he purges away the sins of his people, he forgives their transgressions, and remembers their sins no more, for his name's sake.
*More commentary available at chapter level.