13, and picturesquely describes the march through that terrible gorge of heaped-up waters as being easy and safe, as if it had been across some wide-stretching plain, with springy turf to tread on. The triumphant description of the completeness of the enemies' destruction in ver. 11_b_ is from Exod. xiv. 28, and "they believed on His words" is in part quoted from Exod. xiv. 31, while Miriam's song is referred to in ver. 12_b_. The next instance of departure is the lusting for food (vv. 13-15). Again the evil is traced to forgetfulness of God's doings, to which in ver. 13_b_ is added impatient disinclination to wait the unfolding of His counsel or plan. These evils cropped up with strange celerity. The memory of benefits was transient, as if they had been written on the blown sands of the desert. "They hasted, they forgot His works." Of how many of us that has to be said! We remember pain and sorrow longer than joy and pleasure. It is always difficult to bridle desires and be still until God discloses His purposes. We are all apt to try to force His hand open, and to impose our wishes on Him, rather than to let His will mould us. So, on forgetfulness and impatience there followed then, as there follow still, eager longings after material good and a tempting of God. "They lusted a lust" is from Num. xi. 4. "Tempted God" is found in reference to the same incident in the other psalm of historical retrospect (lxxviii. 18). He is "tempted" when unbelief demands proofs of His power, instead of waiting patiently for Him. In Num. xi. 33 Jehovah is said to have smitten the people "with a very great plague." The psalm specifies more particularly the nature of the stroke by calling it "wasting sickness," which invaded the life of the sinners. The words are true in a deeper sense, though not so meant. For whoever sets his hot desires in self-willed fashion on material good, and succeeds in securing their gratification, gains with the satiety of his lower sense the loss of a shrivelled spiritual nature. Full-fed flesh makes starved souls.