Look upon me, answer me. As when God does not promptly afford assistance to his servants, it seems to the eye of sense that he does not behold their necessities, David, for this reason, asks God, in the first place, to look upon him, and, in the second place, to succor him. Neither of these things, it is true, is prior or posterior in respect of God; but it has been already stated in a preceding psalm, and we will have occasion afterwards frequently to repeat the statement, that the Holy Spirit purposely accommodates to our understanding the models of prayer recorded in Scripture. If David had not been persuaded that God had his eyes upon him, it would have availed him nothing to cry to God; but this persuasion was the effect of faith. In the meantime, until God actually puts forth his hand to give relief, carnal reason suggests to us that he shuts his eyes, and does not behold us. The manner of expression here employed amounts to the same thing as if he had put the mercy of God in the first place, and then added to it his assistance, because God then hears us, when, having compassion upon us, he is moved and induced to succor us. To enlighten the eyes signifies the same thing in the Hebrew language as to give the breath of life, for the rigour of life appears chiefly in the eyes. In this sense Solomon says, "The poor and the deceitful man meet together; the Lord lighteneth both their eyes." (Proverbs 29:13) And when Jonathan fainted for hunger, the sacred history relates that his eyes were overcast with dimness; and again, that when he had tasted of the honeycomb, his eyes were enlightened, (1 Samuel 14:27.) The word sleep, as it is used in this passage, is a metaphor of a similar kind, being put for death. In short, David confesses, that unless God cause the light of life to shine upon him, he will be immediately overwhelmed with the darkness of death, and that he is already as a man without life, unless God breathe into him new vigor. And certainly our confidence of life depends on this, that although the world may threaten us with a thousand deaths, yet God is possessed of numberless means of restoring us to life.

Consider and hear me - literally, "Look, hear me." God had seemed to avert his face as if he would not even look upon him Psalm 13:1; and the psalmist now prays that he "would" look upon him - that he would regard his wants - that he would attend to his cry. So we pray to one who turns away from us as if he were not disposed to hear, and as if he cared nothing about us.
Lighten mine eyes - The allusion here is, probably, to his exhaustion, arising from trouble and despair, as if he were about to die. The sight grows dim as death approaches; and he seemed to feel that death was near. He says that unless God should interpose, the darkness would deepen, and he must die. The prayer, therefore, that God would "enlighten his eyes," was a prayer that he would interpose and save him from that death which he felt was rapidly approaching.
Lest I sleep the sleep of death - literally, "Lest I sleep the death;" that is, "in" death, or, as in the common version, the sleep of death. The idea is, that death, whose approach was indicated by the dimness of vision, was fast stealing over him as a sleep, and that unless his clearness of vision were restored, it would soon end in the total darkness - the deep and profound sleep - of death. Death is often compared to sleep. See the note at 1-Corinthians 11:30; the note at John 11:11, John 11:13; 1-Thessalonians 4:14; Daniel 12:2. The resemblance between the two is so obvious as to have been remarked in all ages, and the comparison is found in the writings of all nations. It is only, however, in connection with Christianity that the idea has been fully carried out by the doctrine of the resurrection, for as we lie down at night with the hope of awaking to the pursuits and enjoyments of a new day, so the Christian lies down in death with the hope of awaking in the morning of the resurrection to the pursuits and enjoyments of a new and eternal day. Everywhere else death is, to the mind, a long and unbroken sleep. Compare Jeremiah 51:39, Jeremiah 51:57.

Consider and hear me - Rather, answer me. I have prayed; I am seeking thy face I am lost without thee; I am in darkness; my life draws nigh to destruction; if I die unforgiven, I die eternally. O Lord my God, consider this; hear and answer, for thy name's sake.

Consider and hear me, O Lord my God,.... The psalmist amidst all his distresses rightly applies to God by prayer, claims his interest in him as his covenant God, which still continued notwithstanding all his darkness, desertions, and afflictions; and entreats him to "consider" his affliction and trouble, and deliver him out of it; to consider his enemies, how many and mighty they were; and his own weakness his frame, that he was but dust, and unable to stand against them: or to "look" (u) upon his affliction, and upon him under it, with an eye of pity and compassion; to have respect to him and to his prayers, and to turn unto him, and lift up the light of his countenance upon him: and so this petition is opposed to the complaint in Psalm 13:1; and he further requests that he would "hear" him; that is, so as to answer him, and that immediately, and thereby show that he had not forgotten him, but was mindful of him, of his love to him, and covenant with him;
lighten mine eyes: meaning either the eyes of his body, which might be dim and dull through a failure of the animal spirits, by reason of inward grief, outward afflictions, or for want of bodily food; which when obtained refreshes nature, cheers the animal spirits, enlightens or gives a briskness to the eyes; see 1-Samuel 14:27; or else the eyes of his understanding, Ephesians 1:18; that he might behold wondrous things in the law of God, know the things which were freely given to him of God, see more clearly his interest in him, and in the covenant of his grace, and have his soul refreshed and comforted with the light of God's countenance; and he be better able to discern his enemies, and guard against them; and be directed to take the best method to be delivered and secured from them. The people of God are sometimes in the dark, and see no light; especially when benighted, and in sleepy frames; and it is God's work to enlighten and quicken them;
lest I sleep the sleep of death; a natural death (w), which is comparable to sleep, and often expressed by it; and which sense agrees with lightening the eyes of his body, as before explained; or rather the sense is, lift up the light of thy countenance, revive thy work in the midst of the years; let me see thy goodness in the land of the living, that I may not faint and sink and die away. Or it may be an eternal death is designed; for though true believers shall never die this death, yet they may be in such circumstances, as through unbelief to fear they shall. The Targum paraphrases the word thus;
"enlighten mine eyes in thy law, lest I sin, and sleep with those who are guilty of death.''
(u) "intuere", Junius & Tremellius, Piscator; "aspice", Pagninus, Montanus, Cocceius. (w) , Homer. Iliad. 11. v. 241. "ferreus somnus", Virgil. Aeneid. 10. v. 745, & 12. v. 309.

lighten mine eyes--dim with weakness, denoting approaching death (compare 1-Samuel 14:27-29; Psalm 6:7; Psalm 38:10).

(Hebrews.: 13:4-5) In contrast to God's seeming to have forgotten him and to wish neither to see nor know anything of his need, he prays: הבּיטה (cf. Isaiah 63:15). In contrast to his being in perplexity what course to take and unable to help himself, he prays: ענני, answer me, who cry for help, viz., by the fulfilment of my prayer as a real, actual answer. In contrast to the triumphing of his foe: האירה עיני, in order that the triumph of his enemy may not be made complete by his dying. To lighten the eyes that are dimmed with sorrow and ready to break, is equivalent to, to impart new life (Ezra 9:8), which is reflected in the fresh clear brightness of the eye (1-Samuel 14:27, 1-Samuel 14:29). The lightening light, to which האיר points, is the light of love beaming from the divine countenance, Psalm 31:17. Light, love, and life are closely allied notions in the Scriptures. He, upon whom God looks down in love, continues in life, new powers of life are imparted to him, it is not his lot to sleep the death, i.e., the sleep of death, Jeremiah 51:39, Jeremiah 51:57, cf. Psalm 76:6. המּות is the accusative of effect or sequence: to sleep so that the sleep becomes death (lxx εἰς θάνατον), Ew. 281, e. Such is the light of life for which he prays, in order that his foe may not be able at last to say יכלתּיו (with accusative object, as in Jeremiah 38:5) = יכלתּי לו, Psalm 129:2, Genesis 32:26, I am able for him, a match for him, I am superior to him, have gained the mastery over him. כּי, on account of the future which follows, had better be taken as temporal (quum) than as expressing the reason (quod), cf. בּמוט רגלי, Psalm 38:17.

Lighten - Revive and comfort, and deliver me from the darkness of death, which is ready to come upon me.