him, viz., in His ways (Psa 25:4), which are worthy of all praise, and hitherto (עד־הנּה, found only in this passage in the Psalter, and elsewhere almost entirely confined to prose) has he, “the taught of Jahve” (למּוּד ה), had to praise the wonders of His rule and of His leadings. May God, then, not forsake him even further on עד־זקנה ושׂיבה. The poet is already old (זקן), and is drawing ever nearer to שׂיבה, silvery, hoary old age (cf. 1Sa 12:2). May God, then, in this stage of life also to which he has attained, preserve him in life and in His favour, until (עד = עד־אשׁר, as in Psa 132:5; Gen 38:11, and frequently) he shall have declared His arm, i.e., His mighty interposition in human history, to posterity (דּור), and to all who shall come (supply אשׁר), i.e., the whole of the future generation, His strength, i.e., the impossibility of thwarting His purposes. The primary passage for this is Psa 22:31.
Verses 19-24
The thought of this proclamation so thoroughly absorbs the poet that he even now enters upon the tone of it; and since to his faith the deliverance is already a thing of the past, the tender song with its uncomplaining prayer dies away into a loud song of praise, in which he pictures it all to himself. Without Psa 71:19-21 being subordinate to עד־אגיד in Psa 71:18, וצדקתך is coupled by close connection with בגורתך. Psa 71:19 is an independent clause; and עד־מרום takes the place of the predicate: the righteousness of God exceeds all bounds, is infinite (Psa 36:6., Psa 57:11). The cry כמוך מי, as in Psa 35:10; Psa 69:9, Jer 10:6, refers back to Exo 15:11. According to the Chethîb, the range of the poet's vision widens in Psa 71:20 from the proofs of the strength and righteousness of God which he has experienced in his own case to those which he has experienced in common with others in the history of his own nation. The Kerî (cf. on the other hand Psa 60:5; Psa 85:7; Deu 31:17) rests upon a failing to discern how the experiences of the writer are interwoven with those of the nation. תּשׁוּב in both instances supplies the corresponding adverbial notion to the principal verb, as in Psa 85:7 (cf. Psa 51:4). תּהום, prop. a rumbling, commonly used of a deep heaving of waters, here signifies an abyss. “The abysses of the earth” (lxx ἐκ τῶν ἀβύσσων τῆς γῆς, just as the old Syriac version renders the New Testament ἄβυσσος, e.g., in Luk 8:31, by Syr. tehūmā') are,
