English: Measure for measure — just as you rejoiced in the success of the nations, so you will be placed under their hand; just as you did not hearken to the voice of Hashem, so you will not understand the language of the enemy.
In Sifrei: Many of the individual curses are read as precise reversals of the blessings that open the chapter, or as consequences that mirror the particular failures of hearing and doing.
Type of Learning
Custom (measure-for-measure pattern in the Tochacha).
What Is Learned
The cascade of curses is not arbitrary; Chazal read it as a coherent system of middah keneged middah that answers the people’s failure to hear and to do.