Charles Ellicott Commentary Deuteronomy 28:29

"and thou shalt grope at noonday, as the blind gropeth in darkness, and thou shalt not prosper in thy ways: and thou shalt be only oppressed and robbed alway, and there shall be none to save thee." — Deuteronomy 28:29 (ASV)

You shall not prosper in your ways. —The exact opposite is promised to Joshua (Deuteronomy 1:8) if he follows the Book of the Law. (Compare to Isaiah 29:10-14.) When men find it no longer possible to follow the word of God, it is written that the wisdom of their wise men shall perish, and the understanding of their prudent men shall be hid.

Oppressed. —The children of Israel and of Judah were oppressed together (Jeremiah 50:33). But it is added, Their Redeemer is strong (Deuteronomy 28:34).

Spoiled. —The word occurs again in Deuteronomy 28:31: Violently taken away.