(5) Cursed be the man . . .--The words are vehement and abrupt, but they burst from the prophet's lips as proclaiming the root evil that had eaten into the life of his people. Their trust in an arm of flesh had led them to Egyptian and Assyrian alliances, and these to "departing from the Lord." The anathema has its counterpart in the beatitude of Jeremiah 17:7. The opening words, Thus saith the Lord, indicate, perhaps, a pause, followed as by a new message, which the prophet feels bound to deliver. It is significant that the prophet uses two words for the English "man." the first implying strength, and the second weakness.

Verses 5-11. - In the higher gnomic or proverbial style. God and man, flesh and spirit, are natural antitheses (comp. Isaiah 31:3; Psalm 56:4). The prayer of the believer is, "Be thou (O Jehovah) their arm every morning;" not Egypt, not Assyria, not any "arm of flesh."

17:5-11 He who puts confidence in man, shall be like the heath in a desert, a naked tree, a sorry shrub, the product of barren ground, useless and worthless. Those who trust to their own righteousness and strength, and think they can do without Christ, make flesh their arm, and their souls cannot prosper in graces or comforts. Those who make God their Hope, shall flourish like a tree always green, whose leaf does not wither. They shall be fixed in peace and satisfaction of mind; they shall not be anxious in a year of drought. Those who make God their Hope, have enough in him to make up the want of all creature-comforts. They shall not cease from yielding fruit in holiness and good works. The heart, the conscience of man, in his corrupt and fallen state, is deceitful above all things. It calls evil good, and good evil; and cries peace to those to whom it does not belong. Herein the heart is desperately wicked; it is deadly, it is desperate. The case is bad indeed, if the conscience, which should set right the errors of other faculties, is a leader in the delusion. We cannot know our own hearts, nor what they will do in an hour of temptation. Who can understand his errors? Much less can we know the hearts of others, or depend upon them. He that believes God's testimony in this matter, and learns to watch his own heart, will find this is a correct, though a sad picture, and learns many lessons to direct his conduct. But much in our own hearts and in the hearts of others, will remain unknown. Yet whatever wickedness there is in the heart, God sees it. Men may be imposed upon, but God cannot be deceived. He that gets riches, and not by right, though he may make them his hope, never shall have joy of them. This shows what vexation it is to a worldly man at death, that he must leave his riches behind; but though the wealth will not follow to another world, guilt will, and everlasting torment. The rich man takes pains to get an estate, and sits brooding upon it, but never has any satisfaction in it; by sinful courses it comes to nothing. Let us be wise in time; what we get, let us get it honestly; and what we have, use it charitably, that we may be wise for eternity.Thus saith the Lord,.... Here begins a new discourse, or part of one; or, however, another cause or reason of the ruin and destruction of the Jews is suggested; namely, their trust in man, or confidence in the creature, which is resented and condemned:

cursed be the man that trusteth in man; as the Jews did in the Egyptians and Assyrians; see Jeremiah 2:36, and in Abraham their father, and in being his seed, as they did in Christ's time; and which was trusting in the flesh; and as all such may be said to do who trust in their natural descent from good men, Matthew 3:9, they also trusted in Moses, in the law of Moses, and in their having, hearing, and obeying it; which pronounces every man cursed that does not perfectly perform it: they trusted in themselves, and in their own righteousness; despised others, and rejected Christ and his righteousness; and brought an anathema upon them, John 5:45 and all such that trust in their own hearts, and in their own works, trust in man, in the creature, in creature acts, and involve themselves in the curse here denounced. The Jews also, to this day, expect the Messiah to come as a mere man, and so trust in him as such; and all those that call themselves Christians, and take Christ to be a mere creature, as the Arians, and a mere man, as the Socinians, may be said to trust in man, and entail a curse upon themselves; though we trust in Christ, yet not as a man, but as he is the true and living God:

and maketh flesh his arm; or his confidence, as the Targum, to lean upon, and be protected by; man is but flesh, feeble, weak and inactive; frail and mortal; sinful and corrupt; and so very unfit to make an arm of, or to depend upon: God, and an arm of flesh, are opposed to each other; as are also rejoicing in Christ Jesus, and having confidence in the flesh, 2 Chronicles 32:8,

and whose heart departeth from the Lord: as men's hearts may, under the greatest show of outward religion and righteousness; and as they always do, when they put their trust in such things; every act of unbelief and distrust of the Lord, and every act of trust and confidence in the creature, carry the heart off from God; every such act is a departing from the living God; see Isaiah 29:13.