In the murmurs to Moses, observe the distinct and conscious apostacy from Jehovah. They recognise that God 'has brought' them there, and they slander Him by the assertion that His malignant, deliberate purpose was to kill them all, and make slaves of their wives and children. That was how they read the past, and thought of Him! He had enticed them into His trap, as a hunter might some foolish animal, by dainties strewed along the path, and now they were in the toils, and their only chance of life was to break through. Often, already, had they raised that mad cry--'back to Egypt!' but there had never been such a ring of resolve in it, nor had it come from so many throats, nor had any serious purpose to depose Moses been entertained. If we add the fact that they were now on the very frontier of Canaan, and that the decision now taken was necessarily final, we get the full significance of the incident from the mere secular historian's point of view. But its bearing on the people's relation to Jehovah gives a darker colouring to it. It is not merely faint-hearted shrinking from a great opportunity, but it is wilful and deliberate rejection of His rule, based upon utter distrust of His word. So Scripture treats this event as the typical example of unbelief (Psa. xcv.; Heb. iii. and iv.). So regarded, it presents, as in a mirror, some of the salient characteristics of that master sin. Bad as it is, it is not out of the range of possibility that it should be repeated, and we need the warning to 'take heed lest any of us should fall after the same example of unbelief.'
We may learn from it the essentials of faith and its opposite. The trust which these cowards failed to exercise was reliance on Jehovah, a personal relation to a Person. In externals and contents, their trust was very unlike the New Testament faith, but in object and essence it was identical. They had to trust in Jehovah; we, in 'God manifest in the flesh.' Their creed was much less clear and blessed than ours, but their faith, if they had had it, would have been the same. Faith is not the belief of a creed, whether man-made or God-revealed, but the cleaving to the Person whom the creed makes known. He may be made known more or less perfectly; but the act of the soul, by which we grasp Him, does not vary with the completeness of the revelation. That act was one for 'the world's grey fathers' and for us. In like manner, unbelief is the same black and fatal sin, whatever be the degree of light against which it turns. To depart from the living God is its essence, and that is always rebellion and death.
Note the short memory and churlish unthankfulness of unbelief. It has been often objected to the story of the Exodus, that such extremity of folly as is ascribed to the Israelites is inconceivable in such circumstances. How could men, with all these miracles in mind, and manna falling daily, and the pillar blazing every night, and the roll of Sinai's thunders scarcely out of their ears, behave thus? But any one who has honestly studied his own heart, and known its capacity for neglecting the plainest indications of God's presence, and forgetting the gifts of His love, will believe the story, and see brethren in these Israelites. Miracles were less wonderful to them, because they knew less about nature and its laws. Any miracles constantly renewed become commonplace. Habit takes the wonder out of everything. The heart that does not 'like to retain God in its knowledge' will find easy ways of forgetting Him, and revolting from Him, though the path be strewed with blessings, and tokens of His presence flame on every side. True, it is strange that all the wonders and mercies of the past two years had made no deeper impression on these people's hearts; but if they had not done so, it is not unnatural that they had made so slight an impression on their wills. Their ingratitude and forgetfulness are inexplicable, as all sin is, for its very essence is that it has no sufficient reason. But neither is inconceivable, and both are repeated by us every day.