What does Deuteronomy 28:63 mean?

Just as the Lord once enjoyed making you prosper and grow, He'll now take just as much care in bringing you down and wiping you out. You'll be torn from the land you're about to enter and possess. Deuteronomy 28:63 - Modern Text Bible

(God's commitment goes both ways: He can bless, but He can also bring judgment if people turn away from Him.)