Carl Friedrich Keil and Franz Delitzsch Old Testament Commentary

He calls his eyelids the "guards of my eyes." He who holds these so that they remain open when they want to shut together for sleep, is God; for his looking up to Him keeps the poet awake in spite of all overstraining of his powers. Hupfeld and others render thus: "Thou hast held, i.e., caused to last, the night-watches of mine eyes," - which is affected in thought and expression. The preterites state what has been hitherto and has not yet come to a close. He still endures, as formerly, such thumps and blows within him, as though he lay upon an anvil (פּעם), and his voice fails him. Then silent soliloquy takes the place of audible prayer; he throws himself back in thought to the days of old (Psa 143:5), the years of past periods (Isa 51:9), which were so rich in the proofs of the power and loving-kindness of the God who was then manifest, but is now hidden. He remembers the happier past of his people and his own, inasmuch as he now in the night purposely calls back to himself in his mind the time when joyful thankfulness impelled him to the song of praise accompanied by the music of the harp (בּלּילה belongs according to the accents to the verb, not to נגינתי, although that construction certainly is strongly commended by parallel passages like Psa 16:7; Psa 42:9; Psa 92:3, cf. Job 35:10), in place of which, crying and sighing and gloomy silence have now entered. He gives himself up to musing "with his heart," i.e., in the retirement of his inmost nature, inasmuch as he allows his thoughts incessantly to hover to and fro between the present and the former days, and in consequence of this (fut. consec. as in Psa 42:6) his spirit betakes itself to scrupulizing (what the lxx reproduces with σκάλλειν, Aquila with σκαλεύειν) - his conflict of temptation grows fiercer. Now follow the two doubting questions of the tempted one: he asks in different applications, Psa 77:8-10 (cf. Psa 85:6), whether it is then all at an end with God's loving-kindness and promise, at the same time saying to himself, that this nevertheless is at variance with the unchangeableness of His nature (Mal 3:6) and the inviolability of His covenant. אפס (only occurring as a 3. praet.) alternates with גּמר (Psa 12:2). חנּות is an infinitive construct formed after the manner of the Lamed He verbs, which, however, does also occur as infinitive absolute (שׁמּות, Eze 36:3, cf. on Psa 17:3); Gesenius and Olshausen (who doubts this infinitive form, 245, f) explain it, as do Aben-Ezra and Kimchi, as the plural of a substantive חנּה, but in the passage cited from Ezekiel (vid., Hitzig) such a substantival plural is syntactically impossible. קפץ רחמים is to draw together or contract and draw back one's compassion, so that it does not manifest itself outwardly, just as he who will not give shuts (יקפּץ) his hand (Deu 15:7; cf. supra, Psa 17:10).