And vpon them that are left of you, I will send euen a faintnes into their hearts in ye land of their enemies, and the sounde of a leafeshaken shall chase them, and they shall flee as fleeing from a sword, and they shall fall, no man pursuing them.
Leviticus 26:34 Then shall the land inioy her Sabbaths, as long as it lieth voide, and yee shalbe in your enemies land: then shall the land rest, and enioy her Sabbaths.
Leviticus 26:35 All the dayes that it lieth voide, it shall rest, because it did not rest in your Sabbaths, when ye dwelt vpon it.
Leviticus 26:36 And vpon them that are left of you, I will send euen a faintnes into their hearts in ye land of their enemies, and the sounde of a leafeshaken shall chase them, and they shall flee as fleeing from a sword, and they shall fall, no man pursuing them.
Leviticus 26:37 They shall fall also one vpon another, as before a sword, though none pursue them, and ye shall not be able to stand before your enemies:
Leviticus 26:38 And ye shall perish among the heathen, and the land of your enemies shall eate you vp.
The verse centers on "vpon", "left", "send", "euen", "faintnes", "hearts", "land", and "enemies". It is saying that the verse draws attention to "vpon" and "left", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 35's "All the dayes that it lieth voide..." into verse 37's "They shall fall also one vpon another...", so "vpon" and "left" belong inside that flow. In Leviticus context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "vpon" and "left" with trust shaped by these words, not by a vague optimism outside the passage.