The fruit of thy land, and all thy labour, shall a nation which thou knowest not eat up,.... The same was prophesied of by Jeremiah, concerning the Babylonish captivity, and was fulfilled in it, Jeremiah 5:17; and has been also verified in the frequent pillage and spoil of this people, in their present state; for though they have no land to till, from whence to gather fruit, yet they are employed in manufactures and merchandise, the fruit and benefit of which they have been frequently stripped of:

and thou shall be only oppressed and crushed always; this seems best to agree with their present case; for in their former captivities they were not always oppressed and crushed, but had respite and deliverance; See Gill on Deuteronomy 28:29.

The fruit of thy land, and all thy labors, shall a nation which thou knowest not eat up; and thou shalt be only oppressed and crushed alway:

28:33 Which thou knowest not - Which shall come from a far country, which thou didst not at all expect or fear, and therefore will be the more dreadful when they come; a nation whose language thou understandest not, and therefore canst not plead with them for mercy, nor expect any favour from them.

28:15-44 If we do not keep God's commandments, we not only come short of the blessing promised, but we lay ourselves under the curse, which includes all misery, as the blessing all happiness. Observe the justice of this curse. It is not a curse causeless, or for some light cause. The extent and power of this curse. Wherever the sinner goes, the curse of God follows; wherever he is, it rests upon him. Whatever he has is under a curse. All his enjoyments are made bitter; he cannot take any true comfort in them, for the wrath of God mixes itself with them. Many judgments are here stated, which would be the fruits of the curse, and with which God would punish the people of the Jews, for their apostacy and disobedience. We may observe the fulfilling of these threatenings in their present state. To complete their misery, it is threatened that by these troubles they should be bereaved of all comfort and hope, and left to utter despair. Those who walk by sight, and not by faith, are in danger of losing reason itself, when every thing about them looks frightful.