Passage
And it shall come to pass that, like as I have watched over them to pluck up and to break down and to overthrow and to destroy and to afflict, so will I watch over them to build and to plant, saith Jehovah.
And it shall come to pass that, like as I have watched over them to pluck up and to break down and to overthrow and to destroy and to afflict, so will I watch over them to build and to plant, saith Jehovah.
Jeremiah 31:26 Upon this I awaked, and beheld; and my sleep was sweet unto me.
Jeremiah 31:27 Behold, the days come, saith Jehovah, that I will sow the house of Israel and the house of Judah with the seed of man, and with the seed of beast.
Jeremiah 31:28 And it shall come to pass that, like as I have watched over them to pluck up and to break down and to overthrow and to destroy and to afflict, so will I watch over them to build and to plant, saith Jehovah.
Jeremiah 31:29 In those days they shall say no more, The fathers have eaten sour grapes, and the children`s teeth are set on edge.
Jeremiah 31:30 But every one shall die for his own iniquity: every man that eateth the sour grapes, his teeth shall be set on edge.
The verse centers on "shall", "come", "pass", "like", "watched", "over", "pluck", and "break". It is saying that the verse draws attention to "shall" and "come", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 27's "Behold the days come saith Jehovah that..." into verse 29's "In those days they shall say no...", so "shall" and "come" 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 "shall" and "come" with trust shaped by these words, not by a vague optimism outside the passage.