16 I in turn will do this to you: I will bring terror on you; consumption and fever that waste the eyes and cause life to pine away. You shall sow your seed in vain, for your enemies shall eat it. 17 I will set my face against you, and you shall be struck down by your enemies; your foes shall rule over you, and you shall flee though no one pursues you. 18 And if in spite of this you will not obey me, I will continue to punish you sevenfold for your sins. 19 I will break your proud glory, and I will make your sky like iron and your earth like copper. 20 Your strength shall be spent to no purpose: your land shall not yield its produce, and the trees of the land shall not yield their fruit. 21 If you continue hostile to me, and will not obey me, I will continue to plague you sevenfold for your sins. 22 I will let loose wild animals against you, and they shall bereave you of your children and destroy your livestock; they shall make you few in number, and your roads shall be deserted. 23 If in spite of these punishments you have not turned back to me, but continue hostile to me, 24 then I too will continue hostile to you: I myself will strike you sevenfold for your sins. 25 I will bring the sword against you, executing vengeance for the covenant; and if you withdraw within your cities, I will send pestilence among you, and you shall be delivered into enemy hands.

Matthew Henry's Commentary on Leviticus 26:16-25

Commentary on Leviticus 26:14-39

(Read Leviticus 26:14-39)

After God has set the blessing before them which would make them a happy people if they would be obedient, he here sets the curse before them, the evils which would make them miserable, if they were disobedient. Two things would bring ruin. 1. A contempt of God's commandments. They that reject the precept, will come at last to renounce the covenant. 2. A contempt of his corrections. If they will not learn obedience by the things they suffer, God himself would be against them; and this is the root and cause of all their misery. And also, The whole creation would be at war with them. All God's sore judgments would be sent against them. The threatenings here are very particular, they were prophecies, and He that foresaw all their rebellions, knew they would prove so. TEMPORAL judgments are threatened. Those who will not be parted from their sins by the commands of God, shall be parted from them by judgments. Those wedded to their lusts, will have enough of them. SPIRITUAL judgments are threatened, which should seize the mind. They should find no acceptance with God. A guilty conscience would be their continual terror. It is righteous with God to leave those to despair of pardon, who presume to sin; and it is owing to free grace, if we are not left to pine away in the iniquity we were born in, and have lived in.