For all this they still sinned. It is a common proverb, that fools become wise when the rod is applied to them. Hence it follows, that those who have often been chastised of God, and yet are not thereby brought to repentance and amendment, are utterly to be despaired of. Such was the obstinacy of the Israelites here described. They could not be reformed by any of the afflictions which were sent upon them. It was a dreadful manifestation of the vengeance of God to see so many bodies of strong and vigorous men stretched dead on the ground. It was therefore a proof of monstrous obduracy, when they were not moved at such an appalling spectacle. By the expression wondrous works, is not only meant the plague just now spoken of: the other miracles, previously mentioned, are comprehended. There is, therefore, laid to the charge of the people a twofold wickedness; -- they are accused not only of disbelieving the word of God, but also of despising the miracles which he wrought. For this reason, it is added, that their plagues were increased; even as God denounces and threatens by Moses, that he will deal sevenfold more severely with the obstinate and hardened who persevere in their wickedness.

For all this they sinned still - Even this did not reclaim them, and prevent their sinning. Heavy judgments do not always restrain men from sin. Not unfrequently they take occasion from such judgments to sin the more.
And believed not for his wondrous works - They did not trust in His wondrous works; or, those works did not have the effect of producing faith. See Psalm 78:22-23. The same thing occurred in the life of the Saviour. John 12:37.

For all this they sinned still - How astonishing is this! They were neither drawn by mercies, nor awed by judgments! But we shall cease to wonder at this, if we have a thorough acquaintance with our own hearts.

For all this they (s) sinned still, and believed not for his wondrous works.
(s) Thus sin by continuance makes man insensible, so that by no plagues they can be amended.

For all this they sinned still,.... Those that survived, not being brought to repentance by mercies, nor by judgments; not by mercies, such as before mentioned, though they were great and many, and some of them continued, and of which they were very unworthy; the goodness of God should, but it does not always, lead persons to repentance; mercies, unless they are sanctified, often prove snares and temptations to sin yet more and more; nothing short of the grace of God will bring persons to repentance for sin, or keep them from it: nor by judgments, which were last mentioned, and seem chiefly designed; these have no more effect than the other, unless the power of divine grace goes along with them; see Amos 4:6 it could not be thought, nor was it expected, that they should, after all these mercies and judgments, have lived without sin, which no man does, or can do; but then they went on in a course of sin, and were continually repeating their transgressions, and were guilty of sins of a very heinous nature, many of which are on record; as Aaron and Miriam, by speaking against Moses, the faithful servant of the Lord, which brought upon the latter the plague of leprosy; the spies which were sent to search the land, and brought an evil report of it, which set the people a murmuring, and put them on thoughts of returning to Egypt; those that were concerned in the business of Korah, Dathan, and Abiram, who were swallowed up in the earth, or burnt with fire from heaven; the whole congregation which murmured at Kadesh, whom Moses called rebels, and who afterwards expressed their loathing of the manna, for which fiery serpents were sent among them, Numbers 12:1, Numbers 20:2 but their prevailing sin was unbelief, as follows:
and believed not for his wondrous works: not "in" them, though the words will bear to be so rendered; for they did believe in them when they were wrought, and that they were wrought by the Lord; though they soon forgot them, and fell into distrust and unbelief; but "by" them (r), or by means of them; though such wonderful things were done for them in providence, as before related, which should have engaged their faith and trust in the Lord; yet, notwithstanding these, they called in question his providence, power, and goodness.
(r) "per miracula ejus", Schmidt; so some in Gejerus.