There is nothing difficult of understanding in the psalm. The train of thought is clear and obvious. The experiences which it details are common, the emotions it expresses simple and familiar. The tears that have been dried, the fears that have been dissipated, by this old song; the love and thankfulness which have found in them their best expression, prove the worth of its simple words. It lives in most of our memories. Let us try to vivify it in our hearts, by pondering it for a little while together now. The psalm falls into two halves, in both of which the same general thought of God's guardian care is presented, though under different illustrations, and with some variety of detail. The first half sets Him forth as a shepherd, and us as the sheep of His pasture. The second gives Him as the Host, and us as the guests at His table, and the dwellers in His house. First, then, consider that picture of the divine Shepherd and His leading of His flock. It occupies the first four verses of the psalm. There is a double progress of thought in it. It rises, from memories of the past, and experiences of the present care of God, to hope for the future. 'The Lord is my Shepherd'--'I will fear no evil.' Then besides this progress from what was and is, to what will be, there is another string, so to speak, on which the gems are threaded. The various methods of God's leading of His flock, or rather, we should say, the various regions into which He leads them, are described in order. These are Rest, Work, Sorrow--and this series is so combined with the order of time already adverted to, as that the past and the present are considered as the regions of rest and of work, while the future is anticipated as having in it the valley of the shadow of death. First, God leads His sheep into rest. 'He maketh me to lie down in green pastures, He leadeth me beside the still waters.' It is the hot noontide, and the desert lies baking in the awful glare, and every stone on the hills of Judaea burns the foot that touches it. But in that panting, breathless hour, here is a little green glen, with a quiet brooklet, and moist lush herb-age all along its course, and great stones that fling a black shadow over the dewy grass at their base; and there would the shepherd lead his flock, while the sunbeams, like swords,' are piercing everything beyond that hidden covert. Sweet silence broods there, The sheep feed and drink, and couch in cool lairs till he calls them forth again. So God leads His children.