Yet they continued still to sin against him. The prophet, having briefly declared how God, by a continual succession of benefits, had clearly manifested the greatness of his love towards the children of Abraham, now adds, that after having been laid under such deep and solemn obligations to him, they, as was natural to them, and according to their customary way, wickedly rebelled against him. In the first place, he accuses them of having provoked him grievously, by pertinaciously adding iniquity to iniquity; and then he points out the particular kind of the provocation with which they were chargeable. By the word provoke, he intimates, that it was no light offense which they had committed, but wickedness so heinous and aggravated as not to be endured. From the place in which it was committed, he aggravates the enormity of the sin. It was in the very wilderness, whilst the remembrance of their deliverance was yet fresh in their memory, and where they had every day full in their view tokens of the presence of God, and where even necessity itself should have constrained them to yield a true and holy obedience -- it was in that place, and under these circumstances, that they repressed not their insolence and unbridled appetite. It was then, certainly, a proof of monstrous infatuation for them to act in such a wanton and disgraceful manner as they did, at the very time when their want of all things should have proved the best remedy for keeping them under restraint, and to do this even in the presence of God, who presented before them such manifestations of his glory as filled them with terror, and who allured them so kindly and tenderly to himself.

And they sinned yet more against him - literally, "They added to sin against him." The idea is, that his mercies, and the proofs of his presence were only made the occasion of greater sin on their part. This may have been in two ways;
(1) their sin was thus more aggravated, as being committed against greater light; and
(2) they evinced more and more their depravity, in proportion as he bestowed mercies on them - not an uncommon thing with people.
By provoking the Most High - literally, "embittering." They rebelled against him. They refused to submit to him. They forgot his mercies. Compare Deuteronomy 9:22.
In the wilderness - literally, "in the dry place;" in the desert. In the very place where they were most manifestly dependent on him - where there were no natural streams of water - where their needs were met by a miraculous supply - even there did they provoke him, and rebel against him. If he had simply stopped that miraculous supply of water they must have perished. But sinners forget how dependent they are on God, when they sin against him. On what can they rely, if he withdraws from them, and leaves them to themselves?

And they (k) sinned yet more against him by provoking the most High in the wilderness.
(k) Their wicked malice could be overcome by no benefits, which were great and many.

And they sinned yet more against him,.... Or, "and they added yet to sin against him" (c); which was great ingratitude; they had sinned before, and it might have been hoped that the goodness of God to them would have engaged them to have sinned no more, at least at such a rate, and in such a manner, as they had done; but instead of sinning less, they sinned more and more, they added sin to sin; such is the corrupt heart of man, notwithstanding the grace of God, and the blessings of it vouchsafed unto him:
by provoking the most High in the wilderness; everything is aggravating; the object against whom they sinned was the most High, which betrays their impiety, folly, and vanity; and they did not slightly sin against him, but did those things which were highly provoking and exasperating; and that in the wilderness, where they received so many favours, and where they must have been starved and perish, and could not have lived, without immediate provision, support, and protection, from the hand of the Lord.
(c) "et addiderunt adhuc ad peccandum ei", Montanus, "vel peccare", Musculus, Gejerus, Michaelis.

yet more--literally, "added to sin," instead of being led to repentance (Romans 2:4).

Wilderness - Where they had such singular obligations to obedience. This was a great aggravation of their sins.