Verse 24. - When thou liest down thou shalt not be afraid. This is beautifully illustrated by what David says in Psalm 4:8, "I will both lay me down in peace and sleep: for thou, Lord, only makest me dwell in safety." No fear is to be apprehended where Jehovah is Protector (see Psalm 3:5, 6; Psalm 46:1-3; Psalm 91:1-5; Psalm 121:5-8). When, (im) is rendered "if" by the Vulgate, LXX., Targum Jonathan. Thou liest down; tish'kav, "thou shalt lie down," kal future, like shakavta, kal perfect, in the corresponding hemistich, is from shakav, "to lie down," specially to lay one's self down to sleep, as in Genesis 19:4; Psalm 3:6. Vulgate, si dormieris; cf. Proverbs 6:22, "when thou sleepest" בְּשָׁכְבְּך, b'shok'b'ka). The LXX. rendering, "if thou sittest" (κάθη), arises from reading תֵּשֵׁב (teshev) for תִּשְׁכַב (tish'kav) Yea, thou shalt lie down; b'shok'b'ta, as before, with] prefixed, equivalent to the future, as in the Authorized Version; LXX., καθεύδῃς. Shall be sweet; arvah, from arav, "to be sweet," or "pleasant," perhaps "well mixed," as arev, equivalent to "to mix." Thy sleep shall be full of pleasing impressions, not restless, as in Deuteronomy 28:66 and Job 7:4, but sweet, because of the sense of safety, and from confidence in God, as well as from a good conscience (cf. Job 11:18, "Thou shalt take thy rest in safety," from which the idea is probably taken).

3:21-26 Let us not suffer Christ's words to depart from us, but keep sound wisdom and discretion; then shall we walk safely in his ways. The natural life, and all that belongs to it, shall be under the protection of God's providence; the spiritual life, and all its interests, under the protection of his grace, so that we shall be kept from falling into sin or trouble.When thou liest down thou shalt not be afraid,.... That is, when thou liest down on thy bed at night in order to take sleep, having committed thyself into the hands of a faithful Creator and covenant God and Father, and of Christ the Redeemer and Wisdom of God; thou shalt not be afraid of thieves breaking in to hurt thy person or rob thee of thy property, or of fire to consume thy dwelling and substance, and of nocturnal apparitions and diabolical spectres deceiving thy sight and disturbing thy mind: or when thou art "asleep" (e), for so the word also signifies; thou shall not be surprised out of it with any of the above things, or terrified in it with uneasy imaginations, anxious cares, and distressing dreams;

yea, thou shalt lie down, and thy sleep shall be sweet; free of all uneasy thoughts and cares, sound and refreshing, pleasant and comfortable, like that of the labouring man, Ecclesiastes 5:12; see Psalm 4:8. This epithet of "sweet" is often given to "sleep" in poetic writings (f).

(e) "dormieris", V. L. "eum dormies", Vatablus. (f) , Homer. Odyss. 7. v. 289. & 19. v. 511. Theocrit. Idyll. 11. v. 22, 23.