Genesis 19:18

18.And Lot said unto them. Here another fault of Lot is censured, because he does not simply obey God, nor suffer himself to be preserved according to His will, but contrives some new method of his own. God assigns him a mountain as his future place of refuge, he rather chooses for himself a city. They are therefore under a mistake, who so highly extol his faith, as to deem this a perfect example of suitable prayer; for the design of Moses is rather to teach, that the faith of Lot was not entirely pure, and free from all defects. For it is to be held as an axiom, that our prayers are faulty, so far as they are not founded on the word. Lot, however, not only departs from the word, but preposterously indulges himself in opposition to the word; such importunity has, certainly, no affinity with faith. Afterwards, a sudden change of mind was the punishment of his foolish cupidity. For thus do all necessarily vacillate, who do not submit themselves to God. As soon as they attain one wish, immediately a new disquietude is produced, which compels them to change their opinion. It must then, in short, be maintained, that Lot is by no means free from blame, in wishing for a city as his residence; for he both sets himself in opposition to the command of God, which it was his duty to obey; and desires to remain among those pleasures, from which it was profitable for him to be removed. He, therefore, acts just as a sick person would do, who should decline an operation, or a bitter draught, which his physician had prescribed. Nevertheless, I do not suppose, that the prayer of Lot was altogether destitute of faith; I rather think, that though he declined from the right way, he not only did not depart far from it, but was even fully purposed in his mind to keep it. For he always depended upon the word of God; but in one particular he fell from it, by entreating that a place should be given to him, which had been denied. Thus, with the pious desires of holy men, some defiled and turbid admixture is often found. I am not however ignorant, that sometimes they are constrained, by a remarkable impulse of the Spirit, to depart in appearance from the word, yet without really transgressing its limits. But the immoderate carnal affection of Lot betrays itself, in that he is held entangled by those very delights which he ought to have shunned. Moreover, his inconstancy is a proof of his rashness, because he is soon displeased with himself for what he has done.