And I will break the pride of your power; and I will make your heaven as {i} iron, and your earth as brass:

(i) You shall have drought and barrenness.

Wesley's Notes

26:19 The pride of your power - That is, your strength of which you are proud, your numerous and united forces, your kingdom, yea, your ark and sanctuary. I will make your heaven as iron - The heavens shall yield you no rain, nor the earth fruits.

Jamieson-Fausset-Brown Bible Commentary

19. I will make your heaven as iron, and your earth as brass-No figures could have been employed to convey a better idea of severe and long-continued famine.

Matthew Henry's Concise Commentary

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.