CHAPTER 8 Ju1. 18 
At that time, says Yahweh, they shall bring out the bones of the kings of Judah, and the bones of his princes, and the bones of the priests, and the bones of the prophets, and the bones of the inhabitants of Jerusalem, out of their graves; 2and they shall spread them before the sun, the moon and all the army of the sky which they have loved, and which they have served, and after which they have walked, and which they have sought, and which they have worshipped: they shall not be gathered, nor be buried, they shall be for dung on the surface of the earth. 3Death shall be chosen rather than life by all the residue that remain of this evil family, that remain in all the places where I have driven them, says Yahweh of Armies.
False Wisdom 
4Moreover you shall tell them, Thus says Yahweh: Shall men fall, and not rise up again? Shall one turn the wrong way, and not return? 5Why then is this people of Jerusalem sliding back by a perpetual backsliding? They hold fast deceit, they refuse to return. 6I listened and heard, but they didn’t speak aright: no man repents him of his wickedness, saying, What have I done? Each one turns to his course, as a horse that rushes headlong in the battle. 7Yes, the stork in the sky knows her appointed times; and the turtle-dove and the swallow and the crane observe the time of their coming; but My people don’t know Yahweh’s law. 8How do you say, We are wise, and the law of Yahweh is with us? But, behold, the false pen of the scribes has worked falsely. 9The wise men are disappointed, they are dismayed and taken: behold, they have rejected the word of Yahweh; and what kind of wisdom is in them? 10Therefore will I give their wives to others, and their fields to those who shall possess them: for each one from the least even to the greatest is given to covetousness; from the prophet even to the priest each one deals falsely. 11They have healed the hurt of the daughter of my people slightly, saying, Peace, peace; when there is no peace. 12Were they ashamed when they had committed abomination? No, they were not at all ashamed, neither could they blush: therefore shall they fall among those who fall; in the time of their visitation they shall be cast down, says Yahweh. 13I will utterly consume them, says Yahweh: no grapes shall be on the vine, nor figs on the fig tree, and the leaf shall fade; and the things that I have given them shall pass away from them. 14Why do we sit still? Assemble yourselves, and let us enter into the fortified cities, and let us be silent there; for Yahweh our God has put us to silence, and given us water of gall to drink, because we have sinned against Yahweh. 15We looked for peace, but no good came; and for a time of healing, and behold, dismay! 16The snorting of his horses is heard from Dan: at the sound of the neighing of his strong ones the whole land trembles; for they have come, and have devoured the land and all that is in it; the city and those who dwell therein. 17For, behold, I will send serpents, adders, among you, which will not be charmed; and they shall bite you, says Yahweh.
Jeremiah Mourns for His People 
18Oh that I could comfort myself against sorrow! My heart is faint within me. 19Behold, the voice of the cry of the daughter of my people from a land that is very far off: Isn’t Yahweh in Zion? Isn’t her King in her? Why have they provoked Me to anger with their engraved images, and with foreign vanities? 20The harvest is past, the summer is ended, and we are not saved. 21For the hurt of the daughter of my people am I hurt: I mourn; dismay has taken hold on me. 22Is there no balm in Gilead? is there no physician there? Why then isn’t the health of the daughter of my people recovered?

Commentary

8:4 Shall one turn the wrong way, and not return?- We all know how when we miss the way in finding an unfamiliar address, there's a tendency to keep on going along the wrong road- because turning back is so psychologically difficult. Pride often stops us turning back; we were so convinced we were right, and what will people think as they see us retracing our steps... And this is the image that God uses here- to appeal to Israel, and ourselves, not to foolishly 'backslide', keep on turning away from Him- just because that's the course we're set upon and we lack humility. Pride is the greatest barrier to repentance; pride is indeed the essence of sin.
8:4-7 See on 5:7. 
8:5 The Hebrew word for “sliding back” is that translated “return”. The image is of a man on a muddy slope; he slides back either into sin, or into the way of the Lord. We must ‘slide’ one way or the other; every micro decision which makes up the stream of daily life is confirmed by God one way or the other. We are never passive in our spiritual path; we are either sliding back, or returning nearer to the Lord.
8:7 But My people don’t know Yahweh’s law- In the context, God is amazed that Israel won’t return- because usually there is a pattern of repentance in people, and even the birds return from where they migrated to. We expect to read ‘But My people don’t return to Me’; instead we read that they don’t know Yahweh’s law. The impact of God’s word, our sensitive Bible reading, should be that we return / repent.
8:11 Peace often refers to peace with God. One of the worst sins we can commit is to tell others that their sin is not sin and that they can have peace with God about it. 
8:21,22 These could be Jeremiah’s words, or Yahweh’s; Jeremiah’s worldview merged very intensely with God’s, just as ours should. They felt for Judah even when Judah were suffering “hurt” for their sins, just as parents share the hurt of the punishment they may give their child.