From the Red Sea the Israelites marched into the wilderness of Shur—a general name, of Egyptian origin, for the district between Egypt and Palestine, of which Etham, given as their route in Numbers (xxxiii. 8), is a subdivision. The rugged way led over stone and sand, with little vegetation and no water. And the “three days’ journey” to Marah, a distance of thirty-three miles, was their first experience of absolute hardship, for not even the curtain of miraculous cloud could prevent them from suffering keenly by heat and thirst. It was a period of disillusion. Fond dreams of ease and triumphant progress, with every trouble miraculously smoothed away, had naturally been excited by their late adventure. Their song had exulted in the prospect that their enemies should melt away, and be as still as a stone. But their difficulties did not melt away. The road was weary. They found no water. They were still too much impressed by the miracle at the Red Sea, and by the mysterious Presence overhead, for open complaining to be heard along the route; but we may be sure that reaction had set in, and there was many a sinking heart, as the dreary route stretched on and on, and they realised that, however romantic the main plan of their journey, the details might still be prosaic and exacting. They sang praises unto Him. They soon forgat His works. Aching with such disappointments, at last they reached the waters of Marah, and they could not drink, for they were bitter. And if Marah be indeed Huwara, as seems to be agreed, the waters are still the worst in all the district. It was when the relief, so confidently expected, failed, and the term of their sufferings appeared to be indefinitely prolonged, that their self-control gave way, and they “murmured against Moses, saying, What shall we drink?” And we may be sure that wherever discontent and unbelief are working secret mischief to the soul, some event, some disappointment or temptation, will find the weak point, and the favourable moment of attack, just as the seeds of disease find out the morbid constitution, and assail it. Now, all this is profoundly instructive, because it is true to the universal facts of human nature. When a man is promoted to unexpected rank, or suddenly becomes rich, or reaches any other unlooked-for elevation, he is apt to forget that life cannot, in any position, be a romance throughout, a long thrill, a whole song at the top note of the voice. Affection itself has a dangerous moment, when two united lives begin to realise that even their union cannot banish aches and anxieties, weariness and business cares. Well for them if they are content with the power of love to sweeten what it cannot remove, as loyal soldiers gladly sacrifice all things for the cause, and as Israel should have been proud to endure forced marches under the cloudy banner of its emancipating God.