Then they believed his words In stating that they believed God's word, and sang his praise, the prophet does not say this to their commendation, but rather to increase, in a twofold manner, their guilt; because, being convinced by such indubitable testimony, they yet instantly resumed their wonted disposition of mind, and began to rebel against God, as if they had never beheld his wonderful works. How very inexcusable was that impiety which in a moment could forget the remarkable benefits which they had been constrained to admit! Overpowered by the grandeur of God's works, they were, he says, in spite of themselves, compelled to believe in God, and give glory to him, and thus the criminality of their rebellion was increased; because, although their stubbornness was overcome, yet they immediately relapsed into their former state of unbelief. A question, however, arises, seeing that true faith always corresponds with the nature of the word, and as the word is an incorruptible seed, so though it may happen to be almost, it never can be totally destroyed. But there is a temporary faith, as Mark calls it, (Mark 4:17) which is not so much a fruit of the Spirit of regeneration, as of a certain mutable affection, and so it soon passeth away. It is not a voluntary faith which is here extolled by the prophet, but rather that which is the result of compulsion, namely, because men, whether they will or not, by a sense which they have of the power of God, are constrained to show some reverence for him. This passage ought to be well considered, that men, when once they have yielded submission to God, may not deceive themselves, but may know that the touchstone of faith is when they spontaneously receive the word of God, and constantly continue firm in their obedience to it. In order to point out the inconstancy of the people, he says, they made haste Some explain this in the following manner, namely, that after they had set out on their journey, they hastened to come to the place called Marah. This, however, is to give a very tame representation of the emphatic style in which the prophet speaks, when severely reprehending their hasty and headlong departure from the way, in that they believed only for a very short time, and speedily forgot God's works; for they had only journeyed three days from their passage through the sea till they came to Marah, and yet they began to murmur against God, because they could not procure pleasant waters. [1] Meantime, we must here observe what we have seen elsewhere, that the alone cause why men are so ungrateful towards God, is their despising of his benefits. Were the remembrance of these to take fast hold of our hearts, it would serve as a bridle to keep us in his fear. The prophet declares what their transgression was, namely, that they did not suspend their desires till a fitting opportunity occurred for granting them. The insatiable nature of our desires is astonishing, in that scarcely a single day is allowed to God to gratify them. For should he not immediately satisfy them, we at once become impatient, and are in danger of eventually falling into despair. This, then, was the fault of the people, that they did not cast all their cares upon God, did not calmly call upon him, nor wait patiently until he was pleased to answer their requests, but rushed forward with reckless precipitation, as if they would dictate to God what he was to do. And, therefore, to heighten the criminality of their rash course, he employs the term counsel; because men will neither allow God to be possessed of wisdom, nor do they deem it proper to depend upon his counsel, but are more provident than becomes them, and would rather rule God than allow themselves to be ruled by him according to his pleasure. That we may be preserved from provoking God, let us ever retain this principle, That it is our duty to let him provide for us such things as he knows will be for our advantage. And verily, faith divesting us of our own wisdom, enables us hopefully and quietly to wait until God accomplish his own work; whereas, on the contrary, our carnal desire always goes before the counsel of God, by its too great haste.

Footnotes

1 - The history to which reference is here made is recorded in Exodus 15 We read in the 22nd verse of that chapter, that the Israelites "went out into the wilderness of Shur, and they went three days in the wilderness, and found no water." They then came to Marah, where there was abundance of water; but it was so bitter that they could not drink of it. Being thus disappointed in the hopes with which the first sight of these waters inspired them, they murmured against Moses, and said, "What shall we drink?" How rapid the transition from gratitude and praise to discontent and murmuring! No sooner did a new trouble befall that people, than they forthwith yielded to impatience, forgat the long series of miracles which had been wrought for their deliverance from Egypt, and distrusting God, appeared to be at once prepared to break out in rebellion against him and Moses their leader.

Then believed they his words - In immediate view of his interpositions in their behalf in conducting them through the Red Sea, and in the destruction of their enemies.
They sang his praise - In the song composed by Moses on the occasion of their deliverance. Exodus. 15.

Then believed they - Just while the miracle was before their eyes.

Then (f) believed they his words; they sang his praise.
(f) The wonderful words of God caused them to believe for a time, and to praise him.

Then believed they his words,.... And not till then; for this is observed, not to their commendation, but to show the slowness of their hearts to believe; they believed on sight, but not before, as Thomas did; whereas, "blessed are they that have not seen, and yet have believed", John 20:29. When they saw the Egyptians dead on the sea shore, then they believed the Lord, and his servant Moses; what he said by his servant Moses, that he would save them from the Egyptians, whom they should see no more, that is, alive, Exodus 14:13. The Targum is,
"and they believed in the name of his Word.''
They sang his praise; Moses with the men, and Miriam with the women; the song is recorded Exodus 15:1 and thus when the people of God have got the victory over the antichristian beast, they will stand on a sea of glass and sing the song of Moses and of the Lamb, Revelation 15:2.

believed . . . his words--This is said not to praise the Israelites, but God, who constrained even so unbelieving a people momentarily to "believe" while in immediate view of His wonders, a faith which they immediately afterwards lost (Psalm 106:13; Exodus 14:31; Exodus 15:1).