A mighty famine - Famines were common in Eastern nations. They were caused by the failure of the crops - by a want of timely rains, a genial sun, or sometimes by the prevalence of the plague or of the pestilence, which swept off numbers of the inhabitants. In this case it is very naturally connected with the luxury, the indolence, and the dissipation of the people in that land,

A mighty famine in that land - As he was of a profligate turn of mind himself, it is likely he sought out a place where riot and excess were the ruling characteristics of the inhabitants; and, as poverty is the sure consequence of prodigality, it is no wonder that famine preyed on the whole country.

And when he had spent all,.... Sin strips a man of all that is good and valuable; of the image of God, of the knowledge of divine things, of natural holiness, of moral righteousness, and of strength to perform moral good; hence man is in a wretched and miserable condition, he is poor, and blind, and naked: and if man has spent all, and sin has stripped him of all, where is his free will? there is no good thing in man, but what comes from the grace of God; nor has he any thing to recommend him to God, or to offer to his creditor, to compound his debts with; nor can he prepare himself for conversion, or any good work:
there arose a mighty famine in that land; sin brings men into a starving and famishing condition; for in the far country, the land of sin, there is a famine of the word: though the Gospel is preached, it is only food to spiritual persons; unregenerate men have no desire to it, but neglect and despise it; and if they attend it, it has no place in them: they that are in this land, are aliens from the ordinances of God, the breasts of consolation, the goodness and fatness of his house; they are in a pit, wherein is no water; their taste is vitiated to every thing that is spiritually good; they live on bread of deceit, and labour after that which satisfies not; wherefore they look like skeletons, and are as the dry bones in Ezekiel's vision:
and he began to be in want; or was in want: when the above is the case, the sinner may be truly said to be in want; an unregenerate man is in want of every thing that is good; of wisdom and knowledge, of grace and holiness, of righteousness or clothing, of food, and of all the necessaries of life: and he may be said to "begin" to be in want, because man was not originally so, but was possessed of a natural fulness; and because sin is the beginning of want, as soon as one takes place, the other does: moreover, this man now began to see and feel himself to be in want, though as yet he was not rightly and truly sensible of his wants, at least of the way to redress them.

when he had spent all . . . a mighty famine--a mysterious providence holding back the famine till he was in circumstances to feel it in all its rigor. Thus, like Jonah, whom the storm did not overtake till on the mighty deep at the mercy of the waves, does the sinner feel as if "the stars in their courses were fighting against" him (Judges 5:20).
in want--the first stage of his bitter experience, and preparation for a change.

He began to be in want - All his worldly pleasures failing, he grew conscious of his want of real good.