Verse 5. - I laid me down and slept; literally, as for me, I laid me down, etc. A contrast seems intended between the king and some of his companions. "I, for my part," he says, "confident in God, calmly laid me down and slept; I did not allow the danger which I was in to interfere with my repose at night." Others, probably, were less trustful. I awaked. When morning came, i.e., I awoke, as usual, from quiet and refreshing slumbers. For the Lord sustained me; rather, sustaineth me. Now and always I am sustained by the Almighty.

3:4-8 Care and grief do us good, when they engage us to pray to God, as in earnest. David had always found God ready to answer his prayers. Nothing can fix a gulf between the communications of God's grace towards us, and the working of his grace in us; between his favour and our faith. He had always been very safe under the Divine protection. This is applicable to the common mercies of every night, for which we ought to give thanks every morning. Many lie down, and cannot sleep, through pain of body, or anguish of mind, or the continual alarms of fear in the night. But it seems here rather to be meant of the calmness of David's spirit, in the midst of his dangers. The Lord, by his grace and the consolations of his Spirit, made him easy. It is a great mercy, when we are in trouble, to have our minds stayed upon God. Behold the Son of David composing himself to his rest upon the cross, that bed of sorrows; commending his Spirit into the Father's hands in full confidence of a joyful resurrection. Behold this, O Christian: let faith teach thee how to sleep, and how to die; while it assures thee that as sleep is a short death, so death is only a longer sleep; the same God watches over thee, in thy bed and in thy grave. David's faith became triumphant. He began the psalm with complaints of the strength and malice of his enemies; but concludes with rejoicing in the power and grace of his God, and now sees more with him than against him. Salvation belongeth unto the Lord; he has power to save, be the danger ever so great. All that have the Lord for their God, are sure of salvation; for he who is their God, is the God of Salvation.I laid me down and slept,.... After the battle was over between Absalom's men and his, says Aben Ezra; but rather this was in the midst of his trouble and distress, since he afterwards prays for salvation: and this sleep was either, as Jarchi observes, through his heart being overwhelmed with grief; for there have been instances of persons sleeping through sorrow, as Elijah, Jonah, and the disciples of Christ, 1 Kings 19:4; or rather this is expressive of the calmness and serenity of his mind amidst his troubles; he laid himself down in peace, and slept quietly and comfortably; he did not lose a night's rest, his sleep was sweet unto him; which was a blessing of life from the Lord that everyone does not enjoy; see Psalm 127:2;

I awakened; in the morning, alive and cheerful, Some lay themselves down and never awake more, as Sisera the captain of Jabin's army, and Ishbosheth the son of Saul; and this might have been David's case, considering the circumstances he was in: and others, through perplexing thoughts and cares, or pains of body, or uneasy dreams, rise fatigued and distressed; but David arose in good health of body, and tranquillity of mind, and comfortably refreshed;

for the Lord sustained me; the psalmist committed himself to the care and protection of God; he laid himself down in his arms, and there slept in safety; the Lord preserved him, who is Israel's keeper, that neither slumbers nor sleeps: and he rose in health and cheerfulness in the morning, supported by his right hand. This shows, that lying down to sleep, when in such circumstances, and awaking with cheerfulness, were not owing to rashness, stupidity, and insensibility, but to divine supports. These words may be interpreted, as they are by some of the ancients, of the death of Christ, and of his resurrection from the dead by the power of God; death is often expressed by sleep, and the resurrection of the dead by an awaking out of sleep, Daniel 12:2; and Christ's death being signified by lying down and sleeping, may denote both the voluntariness of it, that he laid down his life freely and willingly; and his short continuance under the power of death, it was but like a night's sleep; and his resurrection from the dead, being expressed by an awaking through the Lord's sustaining him, shows that it was by the power of God, even the exceeding greatness of his power: and the whole of this may be applied to the case and state of the saints and people of God, who at times have rest and peace amidst their enemies; though they have tribulation in the world, they have peace in Christ; and notwithstanding the temptations of Satan, and the corruptions of their own hearts, they have joy and comfort through believing in Christ; the Lord sustains them with precious promises, and supports them with the discoveries of his love, and upholds them with the right hand of his righteousness.