These punishments would come on the Israelites not for individual errors and sins but for a settled contempt for the whole covenant. They manifested such contempt in presumptuous and obstinate rebellion against the law (vv. 14-15).
"In the curses the converse of the blessings is spelled out. It was usual in legal texts for the curses to be much fuller and longer than the blessings section (cf. Deut. 28 . . .). But this disproportion has a positive didactic purpose as well. It is very easy to take the blessings of rain, peace, and even God's presence for granted. It is salutary to be reminded in detail of what life is like when his providential gifts are removed."301
Moses revealed five levels or waves of punishment. If Israel did not turn back to God after the first penalties, God would bring the second on them, and so on.
26:14-17 The "terror"spoken of (v. 16) is probably a description of the Israelites' general feeling in response to the particular calamities that follow. These punishments were disease, lack of agricultural fruitfulness, and defeat by their enemies.
26:18-20 The second stage of barren land might follow (one curse; cf. 1 Kings 17:1).
26:21-22 The third stage would be divine extermination of their cattle and childlessness (two curses).
26:23-26 The fourth stage would be war, plagues, and famine (three curses).
26:27-33 The fifth stage would be the destruction of the Israelites' families, idolatrous practices and places, land, and nation through dispersion (four curses).
In her history in the land Israel experienced all of these curses because she eventually despised the Mosaic Law. The record of this failure is not consistent. There were periods of revival and consequent blessing. Nevertheless the general course of the nation proceeded downward.