Psalms 78:37

Sin dispirits men, and takes away the heart. Forgetfulness of God's works is the cause of disobedience to his laws. This narrative relates a struggle between God's goodness and man's badness. The Lord hears all our murmurings and distrusts, and is much displeased. Those that will not believe the power of God's mercy, shall feel the fire of his indignation. Those cannot be said to trust in God's salvation as their happiness at last, who can not trust his providence in the way to it. To all that by faith and prayer, ask, seek, and knock, these doors of heaven shall at any time be opened; and our distrust of God is a great aggravation of our sins. He expressed his resentment of their provocation; not in denying what they sinfully lusted after, but in granting it to them. Lust is contented with nothing. Those that indulge their lust, will never be estranged from it. Those hearts are hard indeed, that will neither be melted by the mercies of the Lord, nor broken by his judgments. Those that sin still, must expect to be in trouble still. And the reason why we live with so little comfort, and to so little purpose, is, because we do not live by faith. Under these rebukes they professed repentance, but they were not sincere, for they were not constant. In Israel's history we have a picture of our own hearts and lives. God's patience, and warnings, and mercies, imbolden them to harden their hearts against his word. And the history of kingdoms is much the same. Judgments and mercies have been little attended to, until the measure of their sins has been full. And higher advantages have not kept churches from declining from the commandments of God. Even true believers recollect, that for many a year they abused the kindness of Providence. When they come to heaven, how will they admire the Lord's patience and mercy in bringing them to his kingdom!

For their heart was not right with him. There was no depth in their repentance, it was not heart work. They were fickle as a weathercock, every wind turned them, their mind was not settled upon God. Neither were they stedfast in his covenant. Their promises were no sooner made than broken, as if only made in mockery. Good resolutions called at their hearts as men do at inns; they tarried awhile, and then took their leave. They were hot today for holiness, but cold towards it tomorrow. Variable as the hues of the dolphin, they changed from reverence to rebellion, from thankfulness to murmuring. One day they gave their gold to build a tabernacle for Jehovah, and the next they plucked off their earrings to make a golden calf. Surely the heart is a chameleon. Proteus had not so many changes. As in the ague we both burn and freeze, so do inconstant natures in their religion.