Whoever has thus high longings sobered by lowly estimates of self is ready to receive the assurance of Divine aid. That sense of impotence is the precursor of faith. We must distrust ourselves, if we are ever to confide in God. To know that we need His aid is a condition of obtaining it. Bewildered despondency asks, "Whence comes my help?" and scans the low levels in vain. The eye that is lifted to the hills is sure to see Him coming to succour; for that question on the lips of one whose looks are directed thither is a prayer, rather than a question; and the assistance he needs sets out towards him from the throne, like a sunbeam from the sun, as soon as he looks up to the light. The particle of negation in ver. 3 is not that used in ver. 4, but that which is employed in commands or wishes. The progress from subjective desire in ver. 3, to objective certainty of Divine help as expressed in ver. 4 and the remainder of the psalm, is best exhibited if the verbs in the former verse are translated as expressions of wish--"May He not," etc. Whether the speaker is taken to be the psalmist or another makes little difference to the force of ver. 3, which lays hold in supplication of the truth just uttered in ver. 2, and thereby gains a more assured certainty that it is true, as the following verses go on to declare. It is no drop to a lower mood to pass from assertion of God's help to prayer for it. Rather it is the natural progress of faith. Both clauses of ver. 3 become specially significant if this is a song for pilgrims. Their daily march and their nightly encampment will then be placed under the care of Jehovah, who will hold up their feet unwearied on the road and watch unslumbering over their repose. But such a reference is not necessary. The language is quite general. It covers the whole ground of toil and rest, and prays for strength for the one and quiet security in the other.