Passage
And they have built the high places of Tophet, which is in the valley of the son of Hinnom, to burn their sons and their daughters in the fire; which I commanded them not, neither came it into my heart.
And they have built the high places of Tophet, which is in the valley of the son of Hinnom, to burn their sons and their daughters in the fire; which I commanded them not, neither came it into my heart.
Jeremiah 7:29 Cut off thine hair, O Jerusalem, and cast it away, and take up a lamentation on high places; for the LORD hath rejected and forsaken the generation of his wrath.
Jeremiah 7:30 For the children of Judah have done evil in my sight, saith the LORD: they have set their abominations in the house which is called by my name, to pollute it.
Jeremiah 7:31 And they have built the high places of Tophet, which is in the valley of the son of Hinnom, to burn their sons and their daughters in the fire; which I commanded them not, neither came it into my heart.
Jeremiah 7:32 Therefore, behold, the days come, saith the LORD, that it shall no more be called Tophet, nor the valley of the son of Hinnom, but the valley of slaughter: for they shall bury in Tophet, till there be no place.
Jeremiah 7:33 And the carcases of this people shall be meat for the fowls of the heaven, and for the beasts of the earth; and none shall fray them away.
The verse centers on "built", "high", "places", "tophet", "valley", "hinnom", "burn", and "sons". It is saying that the verse draws attention to "built" and "high", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 30's "For the children of Judah have done..." into verse 32's "Therefore behold the days come saith the...", so "built" and "high" belong inside that flow. In Jeremiah context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "built" and "high" with trust shaped by these words, not by a vague optimism outside the passage.