Passage
As the host of heaven cannot be numbered, neither the sand of the sea measured; so will I multiply the seed of David my servant, and the Levites that minister unto me.
As the host of heaven cannot be numbered, neither the sand of the sea measured; so will I multiply the seed of David my servant, and the Levites that minister unto me.
Jeremiah 33:20 Thus saith Jehovah: If ye can break my covenant of the day, and my covenant of the night, so that there shall not be day and night in their season;
Jeremiah 33:21 then may also my covenant be broken with David my servant, that he shall not have a son to reign upon his throne; and with the Levites the priests, my ministers.
Jeremiah 33:22 As the host of heaven cannot be numbered, neither the sand of the sea measured; so will I multiply the seed of David my servant, and the Levites that minister unto me.
Jeremiah 33:23 And the word of Jehovah came to Jeremiah, saying,
Jeremiah 33:24 Considerest thou not what this people have spoken, saying, The two families which Jehovah did choose, he hath cast them off? thus do they despise my people, that they should be no more a nation before them.
The verse centers on "host", "heaven", "numbered", "neither", "sand", "measured", "multiply", and "seed". It is saying that the verse draws attention to "host" and "heaven", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 21's "then may also my covenant be broken..." into verse 23's "And the word of Jehovah came to...", so "host" and "heaven" 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 "host" and "heaven" with trust shaped by these words, not by a vague optimism outside the passage.